Magnetic therapy is simply the application of a magnet to the body using the correct polarity and the appropriate magnetic strength for the area being treated.

In about 90% of cases, the North Pole (negative polarity) is used. The ideal magnetic strength should be no less than 800 gauss and no more than 12,000 gauss, depending on the application.
Gauss is the unit used to measure a magnet’s strength — just like voltage measures the power of a lightbulb. The higher the voltage, the brighter the bulb; the stronger the gauss, the more energetic the magnet.
Likewise, the size of the magnet should match the area you’re targeting — the larger the area, the larger the magnet.

Magnetic therapy can be used comfortably at home, at work, while driving, or even during exercise.

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Clinical Benefits Under Research:
1. Ability to reduce pain
2. Capacity to heal bones, tissues, muscles, and nerves
3. Potential to prevent and reverse chronic conditions
4. Antibiotic-like effect — microorganisms cannot develop resistance
5. Increases oxygen availability, resulting in more energy
6. Acumagnetic stimulation and energy balancing
7. Can stimulate or inhibit neurons, depending on polarity and application
8. Promotes deeper, more restful sleep
9. Enhances athletic performance by reducing lactic acid buildup (pH balance)
10. Supports the detoxification process
11. Helps reduce stress caused by electromagnetic pollution

Magnetic therapy is a safe, non-invasive way to support your body’s healing and energetic balance — naturally.

Biomagnetism is the science of applying magnetic fields to living biological systems in order to promote healing in the affected areas of the body. It is both a science and an art:
• A science, because magnetic fields interact with the body in measurable, predictable ways — much like electricity.
• An art, because applying magnets effectively requires knowledge of the body and careful selection of the correct polarity, strength, and placement based on the condition being treated.

Biomagnetism is a therapeutic system with a wide range of applications. The concept is simple:
You apply a magnet over a part of the body that is injured, inflamed, or imbalanced, and the magnetic energy helps bring that area back into a state of healing.
In other words, magnets help recharge the body’s natural energy systems — like recharging a battery.

Let’s go back to basics.
Your body is electrical. It is made up of billions of cells, and each cell is a tiny electrical unit.
• Cells are composed of molecules
• Molecules are made of atoms
• Atoms are made of protons (+), electrons (−), neutrons, and subatomic particles
This means each part of your body carries positive, negative, and neutral charges — and a magnetic field.

When you are healthy, your tissue cells vibrate at a specific, natural frequency. When that frequency becomes disturbed — by stress, toxins, trauma, or illness — the cells begin to malfunction, and disease or discomfort can arise.

Biomagnetism seeks to restore that natural vibrational frequency and support the body’s own healing response.

Modern medicine recognizes the body’s electrical nature through tools like:
• The ECG (electrocardiogram) – measuring electrical activity in the heart
• The EEG (electroencephalogram) – measuring brainwave activity
• The EMG (electromyogram) – measuring electrical signals in muscles

These technologies wouldn’t work if there were no electrical energy in the human body. Biomagnetism simply works with that same electrical reality — using natural, non-invasive methods to promote balance, energy, and healing.

Magnetic therapy has been scientifically recognized as a natural and non-invasive approach to support wellness. It helps the body maintain its natural electromagnetic balance, which is essential for proper cellular function and overall health.

🌍 Modern Life Reduces Our Exposure to Natural Magnetism:

We live and work in buildings made of concrete and steel, drive in cars, travel in planes and trains—all of which isolate us from Earth’s natural magnetic field. At the same time, we’re constantly exposed to damaging electromagnetic fields (EMFs) from:
• Household wiring and electricity
• Computers and televisions
• Cell phones, Wi-Fi, and Bluetooth devices
• Microwaves and electric blankets

These artificial fields can disrupt our cellular structure, leading to fatigue, tension, and stress on the body.

🧲 How Therapeutic Magnets Help:

Properly designed static and pulsed magnets help the body restore balance and energy by:
• Supporting healthy circulation
• Enhancing oxygen delivery to tissues
• Promoting relaxation and cellular repair
• Reducing the impact of external EMFs

Magnet therapy supports the body’s natural ability to heal and adapt—making it a simple yet powerful wellness tool for the modern world.

At Health Magnetic Store & More, we specialize in Therapeutic Magnetic Products designed to support the body’s natural healing process. That’s why 99% of our magnets are made with the North Pole (negative polarity) facing the skin — because this is the polarity most associated with healing, balance, and pain relief.

The North Pole of a magnet emits negative magnetic energy, which interacts directly with positive ions in the body. These positive ions — associated with acidity and inflammation — build up around irritated nerves and tissues, creating a constant firing of action potentials (nerve impulses). This overactivity keeps nerves from resting and leads to symptoms like pain, tingling, numbness, and even weakness.

By applying North Pole magnetic energy, you’re providing an alkaline, calming influence that helps:

*Neutralize excess positive ions (acid)
*Reduce nerve irritation and inflammation
*Sedate overstimulated nerve endings
*Promote rest and repair of nerve and muscle tissue

The negative (-) ions of the magnet flow to the positive (+) ions on the membrane of nerve cells. This alkalinizes the membrane, neutralizing the excess positive ions and calming or balancing the ionic flow. This traveling or flowing of negative, alkalizing energy causes nerve cells to finally relax and stop the excess firing of impulses. The long-term result is a sedation of pain or its consequences.

Magnetically speaking, the meaning of negative (-) is to subtract, arrest, take away, reduce, or diminish. So utilizing NORTH (-) Polarity is a HEALING MAGNETIC THERAPY.

When do they finally balance?
It depends on several factors:

Time: How long has the excessive firing of electrical potentials been going on? How long have you had the issue?

Irritation Level: How strong was the nerve irritation? Nerve innervation affects all tissues: muscle, organs, skin, circulatory, hormonal systems, even emotions.

Cause: Irritations may be physical (trauma, poor posture), emotional (stress, loss, sadness), or chemical (drugs, alcohol, sugar, fast food, soda).

Response: What have you done to alleviate the situation? Relying solely on medications and unhealthy habits makes it harder for your body to heal naturally.

Your body may need to relearn how to transition from acid to alkaline, from overstimulated to balanced. The more you reduce chemical, emotional, or physical stress, the faster your body will repair and return to health.

The more you wear the North, Negative (-) pole of the magnet, the faster you will correct the ionic imbalance in your nerve cells.

Our Legacy
Health Magnetic Store, Inc is owned by a family of 3rd-generation chiropractors. It started in 1948 with Dr. Ralph U. Sierra, the Father of Chiropractic in Puerto Rico, license #1. In 1969, he established the PR Scientific Laboratory for the study and application of Biomagnets on humans, animals, and plants.

His daughter, Dr. Irma I. Sierra, was raised in this magnetic environment and has used Magnetic Therapy personally and professionally for over 40 years. Her husband, Dr. Jorge C. Jarrot, also adopted the magnetic philosophy and became a chiropractor to share its benefits.

Their three children — Jorge, Adrián, and Alexandra — were raised using Therapeutic Magnetic Products and now, as Doctors of Chiropractic, continue the Sierra legacy.

The magnetic way of living is our philosophy of living. Every universal law responds to magnetism — physical and spiritual.

We are all connected! We are Energy!

The North Pole, or Negative Polarity, of a magnet plays a critical role in healing and restoring balance to the body. It has been shown to promote alkalinity, reduce inflammation, and relieve pain — all while working in harmony with the body’s natural electromagnetic fields.

Here’s a quick comparison of the two polarities:

The North Pole, Negative    The South Pole, Positive

Relaxes                                  Stimulates

Reduces/relieves pain            Increases pain

Produces more alkalinity         Acidifies

Reduces inflammation             Increases inflammation

Brings oxygen to the cells        Diminishes oxygen

Attacks infections                     Increases infections

Reduces insomnia                   Stimulates wakefulness

Regulates body function          Stimulates body functions

Produces mental lucidity          Causes mental blurriness

Reduces fat accumulation        Stimulates fat deposits

As Dr. Irma Sierra explains:

“Pain comes from an injured nerve. Inside the nerve fiber, we have negative ions; outside, positive ions. When there’s an excess of positive ions, the environment becomes acidic — and that acidity causes pain. By applying the North pole, which is negatively charged and alkaline, you help neutralize the excess acidity, relieve pain, and reduce inflammation.”

During the healing process, the body naturally concentrates a negative magnetic field at the site of injury. This helps tissue regenerate and inflammation resolve. If the body cannot maintain this negative field on its own, healing is delayed or may not happen at all. That’s why applying the North pole of a magnet helps the body complete what it’s trying to do naturally — but more efficiently.

The North pole has been shown to help in a wide variety of conditions, including:
• Arthritis
• Bone spurs
• Neck, back, and joint pain
• Headaches and migraines
• PMS and menstrual discomfort
• Eye issues like cataracts and glaucoma
• Respiratory issues like asthma
• Heart-related conditions
• Sore throats, stomachaches, and more

It also helps regulate calcium deposits, control bleeding in certain cases, and attract potassium ions, which are essential for healthy cellular activity, mental clarity, heartbeat regulation, and post-surgical recovery.

Even in nature, this polarity plays a role. For example, fruit, vegetables, and milk stay fresh longer when placed under the North pole. Plants grow shorter and stronger — a fun experiment for science fairs!

In short:
When you apply the North pole of a magnet, you’re working with the body’s natural healing processes — without any side effects. Just place the North side over the area of concern, and let your body respond the way it was designed to.

Negative ions are invisible particles in the air formed when energy acts on a molecule with enough force to dislodge an electron. That displaced electron attaches itself to a nearby molecule, turning it into a negative ion (anion), while the original molecule (now missing an electron) becomes a positive ion (cation).

These ions interact with dust, allergens, and airborne pollutants — causing them to cluster into heavier particles that are less likely to be inhaled. This natural cleansing process improves air quality and has a direct impact on your overall health.

There are many professional studies showing that our health depends on the quality and ionization of the air we breathe. In nature, negative ions are generated in several ways:
• Half come from naturally occurring radioactive gases and minerals in the Earth
• The other half come from cosmic rays, ultraviolet sunlight, airflow friction, rainstorms, waterfalls, and even plant life

You’ve likely experienced the effects of negative ions the last time you were at the beach, walking through a forest, or standing near a waterfall. That feeling of euphoria or peace you felt wasn’t just the scenery — it was also the air, rich in thousands of negative ions. In contrast, indoor environments — homes, offices, buildings — often contain only a few hundred ions per cubic centimeter, and sometimes none at all.

People often report a sense of clarity and well-being after a thunderstorm, thanks to the rush of negative ions released into the air. These ions are believed to:
• Increase oxygen flow to the brain
• Promote mental alertness
• Reduce dizziness, fatigue, and brain fog
• Support mood and energy levels

Here’s a quick comparison of ion concentrations in different environments (per cubic centimeter of air):
• Indoor air (clean): 100–200 ions
• Outdoor air (clean): 200–500 ions
• Forests, mountains, or near the ocean: 1,000–2,000 ions — the level at which most people feel their best

In short, negative ions enhance the environment your body thrives in. They are part of what makes nature feel so rejuvenating — and they’re a key concept behind why magnetism and energy-based therapies help restore your body’s natural balance.

Biomagnetic therapy has been shown to support the body in powerful, natural ways — without drugs or invasive treatments. When used consistently, magnets may help the body restore balance, relieve discomfort, and promote healing.

🌿 Regular use of magnets may help to:
• ✅ Alleviate pain
• ✅ Reduce inflammation
• ✅ Improve blood circulation and oxygen delivery
• ✅ Support detoxification and elimination
• ✅ Enhance immune response and control infections
• ✅ Accelerate healing and tissue regeneration
• ✅ Promote cellular repair and reduce oxidative stress
• ✅ Improve sleep, reduce stress, and boost mental clarity
• ✅ Increase energy and physical performance
• ✅ Improve overall wellness and quality of life
• ✅ All while being non-toxic and non-invasive.

🧲 How do magnets work in the body?

There are two key mechanisms often cited in magnetic therapy:

1. Blood and Molecular Action

Blood contains iron (which is magnetic), and over 80% of blood is water. When a magnet is applied, it polarizes water, hydrogen, oxygen, and iron molecules, allowing them to move more efficiently throughout the body — improving circulation and supporting healing.

2. Nervous System Support

Magnets also stimulate the nervous system, encouraging the flow of alkaline, negative energy through nerve fibers. This may reduce pain signals, modulate inflammation, and help cells communicate and function more effectively.

🔵 Why use North polarity?

The body naturally concentrates negative electromagnetic energy at sites of injury as part of its healing process. But when it can’t maintain this field, healing slows or stalls.
Applying a North (negative) polarity magnet to the area helps the body stay in a healing state — safely and efficiently.

No — not all magnetic products are the same. There are many magnets on the market placed into wraps, supports, or mass-market products, but their strength, polarity, and effectiveness vary greatly.

At Health Magnetic Store & More, we offer only magnets that have been evaluated, tested, and trusted — built on over 60 years of clinical use, starting with the handcrafted designs of Dr. Ralph U. Sierra.

Drs. Sierra and Jarrot used these magnets personally and professionally with excellent results. Our current products carry magnetic strengths from 750 to 3850 gauss, and are made from durable, safe materials designed for therapeutic use.

We continue to offer Dr. Sierra’s original therapy designs, redesigned and enhanced by Dr. Irma I. Sierra, including magnetic eye shields, neck and back bands, ceramic plates, water polarizers, bracelets, and his published books in Spanish and English.

🧭 A Legacy of Truth, Quality, and Real Magnetic Knowledge

The path may not always be easy — but at Health Magnetic Store & More, we believe it’s far better to offer you truthful, helpful information than to rely on hype or misinformation just to make a sale.

As a health care practitioner, I’ve always told my patients, staff, family, and customers:
Be aware of imitations.

We’ve been working with magnets long before opening our store in 2004. In the early days, we purchased magnets from abroad — and quickly learned that if polarity wasn’t specified, magnets could arrive with the wrong side facing the skin. That was alarming — and that’s why we made a lifetime commitment to never compromise on education, quality, or polarity accuracy.

🔍 What Makes Our Magnets Different?

Every magnetic product we offer is carefully selected and clearly marked for:
• Magnetic Material
• Magnetic Polarity (North or South)
• Manufacturer’s Gauss Rating
• (When needed) Surface Gauss and Penetration Distance

We use primarily unipolar magnets, which have North on one side and South on the other — allowing deeper, more focused therapeutic penetration, often 4–8 times greater than bipolar magnets.

We also follow strict polarity guidelines:
• Geographic South = Magnetic North = Negative = – ve
• Geographic North = Magnetic South = Positive = + ve

📐 How Are Magnets Rated?

Magnets are scientifically characterized by:
1. Residual Induction (Br) – Measured in Gauss; how strong the magnetic material can be.
2. Coercive Force (Hc) – Measured in Oersteds; how resistant it is to demagnetization.
3. Maximum Energy Product (BHmax) – Measured in Gauss-Oersteds; the total energy density of the magnet.

These measurements guide our selection process — so you receive products that perform consistently and effectively, just as they’ve done for our patients for decades.

🧲 Understanding Magnetic Strength: What Gauss Really Means

All Magnets are not created equal

Not all magnets are created equal — and not all “gauss ratings” tell the full story. At Health Magnetic Store & More, we believe that education is the key to choosing the right magnetic therapy product. So let’s break it down:

📏 What is Gauss?

Magnetic strength is measured in Gauss, named after the German scientist Carl Friedrich Gauss. For comparison:
•Earth’s magnetic field is about 0.5 gauss
•A refrigerator magnet is around 10 gauss
•Therapeutic magnets typically range from 500 to 10,000 gauss

But here’s where it gets tricky: while a refrigerator magnet might show more surface gauss than the Earth’s field, it’s not stronger overall. That’s because total magnetic influence also depends on the magnet’s size, shape, and composition — not just the gauss number.

Gauss is the most misunderstood term in magnetic therapy, greatly misused by some manufacturers who use manufacturer’s gauss rating to indicate the strength of their products, when in truth the strength of a magnet depends on:
a) Strength of material (manufacturer’s gauss rating)
b) Size and weight of the magnet

A gauss meter is an instrument which can be used to measure lines of magnetic flux at a specific point on a magnet, but that reading provides no information about the total energy of the magnet being tested or about how far the energy will project from its surface.  The magnetometer we use, will confirm the magnets polarity (which has nothing to do with its gauss) and exactly how far will the magnetic energy travel, with or without materials blocking or in between the magnet and the magnetometer.

🧾 What Makes Our Magnetic Products Different?

Many companies advertise their magnets using only the manufacturer’s gauss rating — which refers to the magnetic core material, not the actual energy reaching the body. That alone can be misleading.

At Health Magnetic Store & More, we take it further by ensuring you always know what you’re truly getting:
✅ Manufacturer’s Gauss Rating – this is the standardized way to indicate the magnetic material’s strength, and we include it for every magnet we sell.
✅ Polarity Placement – we clearly specify the North (negative) or South pole facing the body, as proper polarity matters deeply in therapeutic applications.
✅ Magnet Type and Size – whether it’s ceramic or neodymium, small disc or large plate, we list this to help you make an informed choice.
✅ Internal Testing – While we don’t always publish surface or field penetration gauss readings, we do test these factors in-house using professional magnetometers and gauss meters to ensure effectiveness, consistency, and safety.

You deserve more than vague numbers and marketing claims. We’ve worked with magnets since before our store opened in 2004, and we know what works and what doesn’t — because we’ve seen the results in our practice, with our customers, and in our own lives.

🔬 Let’s look at actual readings from magnets we sell at Health Magnetic Store & More:

▪️ Sierra Acu-Magnets (Neodymium-Iron-Boron)
• Manufacturer’s rating: 13,800 gauss
• Surface gauss (measured with a gauss meter): 2,500 gauss
• Magnet size: 0.2” diameter × 0.1” thick
• Magnetometer reading: 2 gauss, a distance of 2 1/2"" from the surface of the magnet. So there is magnetism- depth or penetration- at 2.5" into the tissue of that small size magnet.

▪️ Sierra Mini Disc Magnet (Ferrite Ceramic)
• Manufacturer’s rating: 3,850 gauss
• Surface gauss: 565 gauss
• Magnetometer reading: 2 gauss at 1” distance from the surface of the magnet. So there is magnetism- depth or penetration- at 1" into the tissue of that small size magnet.

▪️ Dr. Sierra’s N-2 Original Magnet (Ferrite Ceramic – 6” × 4” × ½”)
• Manufacturer’s rating: 3,850 gauss (same as N-1, N-3 and domino magnets)
• Surface gauss: 950 gauss
• Magnetometer reading: 2 gauss at a distance of approximately 20” from the surface. So there is magnetism- depth or penetration- at 20" into the tissue of that big size magnet.

As you can see, the real therapeutic effect depends not only on material strength, but also on size, shape, polarity, and distance.

🤝 Our Commitment to Truth and Quality

Other vendors may say — or even criticize — that “gauss” readings don’t really provide any useful information. But think about it realistically:
If I want a support for my knee, and the injury is minor or severe, wouldn’t it help to know:
• How many magnets are inside?
• What material they’re made of?
• What’s the size and shape of those magnets?
• And yes — what’s the gauss rating?

Wouldn’t it be easier to choose if I knew one brace has 24 small ferrite magnets at 1,000 gauss each, and another has 12 neodymium magnets at 1,200 gauss each?

And has anyone even mentioned polarity?

We believe that gauss alone doesn’t tell the whole story — and that’s exactly why it’s hard to market magnetic products using just one number. But it’s also why we choose to educate our customers. We share the material, polarity, and strength of every magnet we sell, so that you can make an informed decision, not a rushed one.

Back when we started ordering magnets — before we even opened our retail and online store in 2004 — we quickly realized how important these details are. If we didn’t specify polarity, the magnets arrived with the wrong side facing the body. That was not only disappointing — it was dangerous. We learned fast. And we’ve been committed to doing it right ever since.

Because quality magnets speak for themselves. And truthfully informed customers make better choices.

There are many magnetic products on the market, but not all are created equal. At Health Magnetic Store & More, every magnet we offer has been evaluated, tested, and selected to match the quality and strength of those originally handcrafted by Dr. Ralph U. Sierra himself.

Alongside Dr. Jarrot, Dr. Sierra used these magnets for decades with outstanding results — both personally and in clinical practice. Today, we continue that legacy by offering products made with the same principles, materials, and energetic integrity.

Our magnets range in strength from 750 gauss to 3,750 gauss, and are built with durable materials that withstand regular, long-term use.

We carry a wide variety of magnet types, including:
• Therapeutic ceramic magnets in various shapes and sizes
• Flexible magnetic plates for the back, joints, and other body areas
• Magnetic lenses for eye care
• Neck bands and support wraps
• Handheld cylinders for nerve and energy alignment
• Magnetic pencils and water polarizers to energize drinking water
• Bracelets and jewelry with integrated magnets for daily wear

And of course, we offer Dr. Sierra’s original Magnets and teaching, now available in print:
• Energía Magnética o Biomagnetismo (Spanish only)
• El Poder del Imán and Más Allá del Poder del Imán by Dr. Irma I. Sierra
• Beyond the Power of the Magnet (English edition)
• Power in a Magnet — the revised edition that includes the works of both Dr. Irma and Dr. Ralph U. Sierra

When you shop with us, you’re not only receiving magnetic products — you’re receiving generational expertise, clinical results, and a legacy of healing.

The magnets used and sold by HMS are magnets prepared with a single pole on each side of the magnet or support. It is necessary to separate the negative energy from the positive energy, which can be applied separately according to the condition. The larger the magnet, the deeper the penetration of magnetic energy, is a direct relationship.

Every magnet has two poles — the North Pole (negative) and the South Pole (positive) — which create the magnetic field that makes them useful for therapy. Identifying these poles is essential for safe and effective application, especially when used on the body.

There are several reliable ways to determine magnetic polarity:
1. Suspend the Magnet with Thread
This is a classic method. If you suspend a bar magnet by a thread tied at its center, it will naturally align itself with Earth’s magnetic field. The end that points south is the North Pole of the magnet (since opposite poles attract), and the end pointing north is the South Pole.
2. Use a Pre-Marked Magnet to Test Another
The easiest method we recommend is to use a magnet that’s already marked — like our Domino Magnet, which is color-coded:

• Red = South pole (positive) – STOP/DANGER
• Blue or Green = North pole (negative) – GO/HEALING

You can test an unmarked magnet by bringing one end of the pre-marked magnet close to it:
• If they attract, the sides are opposite — meaning you’ve found a North-South pair.
• If they repel, the poles are the same — so if your tester was North, the other side is also North.

3. Use a Magnetometer (Field Tester)
This is the most precise method and the one we use in our store and clinic. A magnetometer detects the direction and strength of a magnetic field. Here’s how it works:

• Place the magnet’s end near the TEST arrow on the magnetometer.
• If the needle moves to the left (−), you’ve found the North Pole.
• If it moves to the right (+), you’ve found the South Pole.

This method not only confirms polarity but also helps measure magnetic strength. For example:
• If the needle deflects fully to “5” at a 1-inch distance, the magnet’s strength is approximately 300 gauss.
• Therapeutic magnets typically range from 800 to 3,750 gauss.
• For reference, a refrigerator magnet is only about 10 gauss.

At Health Magnetic Store & More, we test each and every therapy magnet using a magnetometer and mark them clearly as:
• −ve = North pole = Negative polarity
• +ve = South pole = Positive polarity

This practice is based on over 60 years of research and application by both Dr. Ralph U. Sierra and Dr. Irma I. Sierra — used successfully in our chiropractic clinics, online store, and patient care protocols.

We follow this standard consistently:
• Geographic South = Magnetic North = Negative = −ve
• Geographic North = Magnetic South = Positive = +ve

Remember: for therapeutic purposes, knowing the correct polarity is essential. The invisible magnetic force may not be seen — but you can feel it, and it’s that force that interacts with your body’s energy field.

All magnets sold in our store and online are pre-marked for correct polarity, so you can use them confidently and correctly.

With consistent use, magnets have been shown to support the regeneration and repair of injured tissues. Their therapeutic effect is believed to come from their ability to influence both blood chemistry and nervous system function — working at the molecular and bio-electrical level of the body.

One theory centers on the composition of blood. In addition to iron (which is magnetic), blood is approximately 90% water. When a magnet is applied to the body, the water, hydrogen, oxygen, and iron molecules become polarized, allowing them to travel more efficiently through the circulatory system. This process helps to energize and organize the blood, nourishing tissues and enhancing the body’s own healing and recuperative powers.

Another theory is based on how magnetic energy interacts with nerve cells. Studies of cell membranes — particularly in nerve and muscle cells — show that a difference in ion concentration exists inside and outside the cell. These ionic differences are critical for nerve transmission and cellular function.

Every living being depends on direct current (DC) energy and pulsed DC energy for survival. Each cell contains:
• A positive electrical charge at its nucleus
• A negative charge at its outer membrane

The nervous system, in particular, relies on these charges to function properly. According to Dr. Irma I. Sierra’s book, Power in a Magnet (which references G. Tortora’s Principles of Anatomy and Physiology), we understand that:
• Nerve cells have a negative charge inside and positive charge outside
• Blood cells have a positive charge inside and negative charge outside

By applying a North Pole (negative polarity) magnet to an area of pain, inflammation, or muscle spasm, you are helping to neutralize excess positive ions (acidic charge) gathered on the nerve cell surface.

Here’s how it works:
• The negative charge of the magnet attracts the positive ions (K⁺) on the outside of the nerve fiber
• This encourages ion exchange across the nerve membrane, restoring electrical balance
• As the positive energy flows into the magnet’s negative field, the pain signals weaken or diminish
• The result is a natural sedation effect — much like a gentle anesthesia caused by the magnet itself

This is also why conditions such as infections, spasms, emotional imbalance, and acid states are best treated with negative magnetic energy (North Pole) — since positive magnetic fields may stimulate and worsen those imbalances.

The body naturally sends negative ions to injured areas during the healing process. When you apply a magnet with North polarity, you assist that process — allowing the body to heal faster and with less discomfort, without side effects.

Magnetic products may help support the body in many areas of health and wellness, especially when used consistently and with the correct polarity and placement. Based on decades of clinical experience, research, and user testimonials, magnetic therapy has been associated with a wide range of potential benefits.

Magnetic products can help with:
• ✅ Pain relief (joint, muscle, back, neck, and more)
• ✅ Reduced inflammation
• ✅ Improved blood circulation and oxygenation
• ✅ Faster recovery from injuries and sports-related strain
• ✅ Better sleep and reduced insomnia
• ✅ Reduced stress and anxiety
• ✅ Improved energy and vitality
• ✅ Relief from PMS and menstrual discomfort
• ✅ Digestive and abdominal discomfort
• ✅ Support for arthritis, fibromyalgia, and chronic conditions
• ✅ Enhanced immune response
• ✅ Increased mental clarity
• ✅ Detoxification and elimination support
• ✅ Stimulation of the body’s natural healing processes

The key is using the correct magnetic polarity, strength (measured in gauss), and application site. Most of our therapeutic magnets use the North Pole (negative polarity), which helps calm the nervous system, reduce acid buildup, relieve pain, and support regeneration.

Whether it’s a bracelet, wrap, magnetized pillow, PEMF therapy, or one of Dr. Sierra’s original plate magnets, the goal is always the same: to rebalance your body’s energy field and give it the support it needs to heal itself — naturally and non-invasively.

Because nearly 80% of your body is water, and water plays a vital role in every metabolic function — from transporting nutrients and oxygen, to removing waste, to supporting digestion and circulation. Drinking enough water is essential, but drinking magnetically polarized water can take your hydration to another level.

While water itself isn’t magnetic (it doesn’t attract metal), it can be magnetized or polarized when exposed to a properly placed North Pole magnet. This changes the rotation of the hydrogen molecules, allowing them to react more efficiently with oxygen — resulting in charged, energized water that your body absorbs and uses more effectively.

You can easily polarize your water by placing a magnet:
• Under a glass, jar, bottle, or even a 5-gallon container
• For minutes to hours, depending on the volume (you can even leave it indefinitely, as we do at home with our five-gallon setup)

At Health Magnetic Store & More, we make it even easier by offering a small flexible magnetic disc you can attach to your water bottle, or our magnetic pencil, designed for on-the-go use. This way, you can always have access to polarized water — wherever you are.

You may notice the effects through your urinary and digestive systems, but polarized water has no contraindications. It is safe, gentle, and beneficial for everyone, including children and the elderly.

Have you heard of sacred or medicinal waters around the world that people travel to for healing? Many of these regions are known to be highly magnetized environments — and the water carries that natural charge. However, it’s important to note that water loses its magnetic charge after 48 hours, which is why we always recommend keeping a magnet or magnetic pencil nearby for continuous use.

Drinking polarized water is one of the simplest, most natural ways to support your body’s vitality — every single day.

By Dr. Irma I. Sierra

Besides being beautiful and stylish, biomagnetic jewelry—such as bracelets, rings, earrings, necklaces, and anklets—delivers more than just aesthetic appeal. These pieces provide a constant, gentle magnetic field that helps support the body’s natural energy, polarize the blood, and strengthen circulation throughout the day.

As my father, Dr. Ralph U. Sierra, used to say:

“We live surrounded by the Earth’s magnetic field. The Earth is a gigantic magnet, constantly radiating its magnetic power to every person, animal, plant, and object. Even the ocean waves are influenced by magnetism.”

Our human body is made up of billions of cells, which in turn are made of atoms—tiny structures with positive (+), negative (−), and neutral charges. This makes the human body electromagnetic by nature, like a living battery. That’s why you can feel static electricity when you comb your hair, or even improve your radio’s signal just by standing near it—you are part of the magnetic world.

But here’s the challenge: Modern life disconnects us from natural magnetism.
If you work indoors under artificial lighting or air conditioning…
If you’re constantly exposed to electronics, computers, and cell phones…
If you live in a high-rise or urban area with limited green space…
If you travel often in cars, planes, or trains…

Then you’re likely not receiving enough natural magnetic stimulation from the Earth.

That’s where biomagnetic jewelry comes in.
Wearing it throughout the day helps:
• Restore and maintain your energetic balance
• Polarize your blood, which improves circulation
• Boost energy levels and vitality
• Reduce physical and mental tension by helping the body function with less strain

Every form of injury, fatigue, and even illness is affected by electromagnetic influences—whether natural or artificial. The funny thing is, we cannot survive without a magnetic field… yet we often forget how much we’re missing when we live surrounded by concrete, screens, and noise.

So if you want to reconnect to the Earth’s energy or simply maintain your inner balance, wearing biomagnetic jewelry is one of the easiest and most beautiful ways to do so.

I invite you to explore our collection of therapeutic bracelets, necklaces, earrings, rings, and anklets—designed to support your health while honoring your personal style.

Results vary from person to person. Some individuals feel relief within minutes, while for others it may take a few days or even a few weeks of consistent use. Sometimes the change is so subtle that you may not notice it until you remove the magnet — and realize the discomfort begins to return.

The key is to let your body guide you. Every body is different, and every session is like starting fresh — because the body is always changing, responding to both treatment and life’s daily stressors.

If your body responds well, you may keep the same duration, frequency, and magnet strength — or gradually increase your exposure to the next level. In very rare cases, if your body shows signs of not adapting well (such as overstimulation, fatigue, or sensitivity), you may choose to decrease the duration or frequency of use until your system is ready.

Magnetic therapy is most effective when applied consistently and respectfully — working with your body’s natural rhythms, not against them.

This often depends on your goals and personal comfort level. While each of our products includes usage recommendations on the label or insert, how long you wear them may also be based on the purpose you’re using them for.

Some individuals use magnets only when in pain and remove them once relief is achieved — reapplying as needed. Others wear them continuously, either for chronic support or long-term wellness. You can use magnets short term to alleviate pain and accelerate healing, or you can choose to use them as a lifetime habit to maintain your health and energy.

For general wellness, it is recommended to use magnets twice a day for at least 30 minutes. This helps to recharge your cells and bring your body into a more optimal electromagnetic balance.

For pain relief, it is often recommended to wear the magnet over the affected area for several hours, and reapply as needed. You may also sleep with negative-pole magnets, and many people experience deeper rest and improved recovery this way.

For chronic conditions, infections, or growths, our research and patient experience suggest that a constant application of a negative magnetic field (24 hours a day) is ideal. In these cases, wearing or placing magnets over the area for two to three months or more may be required. Infected or abnormal cells, including cancer cells, may be gradually inhibited or neutralized when exposed to a constant North (negative) polarity field with a strength of 2000 gauss or more.

Examples of application include:
• Small neodymium or domino magnet over breast lumps, fibrous tissue, or localized areas of discomfort.
• N-1 or N-2 magnets placed under a cushion to target larger organs such as the stomach, intestines, liver, pancreas, prostate, uterus, or spleen — ideal for extended, seated applications.
• Neckbands with a domino magnet may be used for the thyroid, throat, and upper spine/neck region.
• We also recommend drinking magnetized water using Sierra’s Magnetic Water Pencil, Cylinder, or Water Cooler to support hydration and internal balance.

As always, hydration is essential when using magnetic therapy regularly. Be sure to drink plenty of water — ideally magnetically polarized — to support detoxification and cellular function.

The magnets we use in our products are permanent magnets, which means they are designed to retain their strength indefinitely under normal conditions.

Magnets do not “run out” of power. In fact, all magnetic components sold at Health Magnetic Store & More are guaranteed to maintain their strength for a lifetime — as long as they are not subjected to:
• High heat (over 175°F or 80°C)
• Strong physical impact
• Improper storage next to opposing magnetic fields

If treated properly, your magnets will remain just as effective 10, 20, or even 30 years from now as they are today.

So when you invest in magnetic therapy, you’re not just buying a product — you’re gaining a long-term wellness tool that doesn’t wear out with use.

Magnets are natural elements derived from the earth, and when used correctly, they are considered one of the safest forms of alternative therapy available today.

At Health Magnetic Store & More, we use North polarity magnets with gauss strengths appropriate for living tissue. For other therapeutic purposes, magnets can be used in different ways — but it’s essential to apply the correct polarity for the intended effect.

All available research supports the safety of static magnetic fields when applied to the body. In fact, the World Health Organization (WHO) recognized in 1987 that magnets posed no known health risks when used appropriately.

To put it into perspective, most people are familiar with Magnetic Resonance Imaging (MRI). In the early 1980s, Dr. Ralph U. Sierra had the opportunity to witness the development of MRIs firsthand. During pre-marketing studies, the application of strong magnetic energy to the human body was found to cause no harm whatsoever — even at extremely high intensities. Because of this, no further toxicity studies were required.

The U.S. FDA has also classified the application of static magnetic field energy to the human body as “not harmful,” regardless of the gauss strength or duration of exposure.

In summary: when used properly, magnets are safe, effective, and non-invasive, making them a trusted option for both short-term relief and long-term wellness.

While magnetic therapy is generally very safe, there are specific situations where its use is not recommended.

You should not use magnets if you:
• Have a pacemaker, defibrillator, insulin pump, cochlear implant, or any other implanted electronic medical device
• Are pregnant, especially during the first trimester
• Are undergoing radiation therapy or chemotherapy (consult your physician before use)
• Have a bleeding disorder or are using blood-thinning medication (in cases where strong magnets are placed near active wounds or surgical sites)

Magnets should also not be applied directly over:
• The head or eyes in individuals prone to seizures
• Areas of active infection if you are unsure of the appropriate polarity
• Open wounds, unless advised by a healthcare provider familiar with magnetic protocols

While magnets are non-toxic and non-invasive, it’s always wise to consult with a knowledgeable practitioner — especially if you have a complex medical condition or are taking prescription medications.

At Health Magnetic Store & More, we are here to help guide you through safe and effective use based on your unique situation.

Yes — but only with the North pole (negative polarity) and depending on the type, location, and size of the cancer. Always consult your physician before starting any complementary therapy.

Magnets should be used with precision and care, and only North pole polarity magnets are recommended in cancer cases. At Health Magnetic Store & More, we have guided many individuals through complementary use of magnets to support wellness during treatment.

In fact, a 1991 study published in the Journal of Traditional Chinese Medicine reported that wearing a magnet over the Neiguan acupuncture point (inner wrist) helped reduce the side effects of chemotherapy and radiation:
• 65% of subjects no longer experienced nausea or vomiting
• 25% had mild side effects
• 10% experienced no change

We have found in our own experience that placing an N-1 magnet with North polarity over the abdomen during therapy can reduce gastrointestinal side effects. When not in active use, magnets can also be placed between your mattresses or used to magnetize drinking water to support internal detox and hydration.

Scientific studies also support this approach:
• Cancer cells thrive in an acidic, low-oxygen (hypoxic) environment. (Cancer Research, 1986 Jun;46(6):2821-6)
• Negative polarity (North pole) exposure has been shown to inhibit cancer cell growth, while prolonged exposure to positive polarity may promote it. (Journal of the National Medical Association, 1990)
• Low-level magnetic fields (like PEMF) have been used in Europe for over 20 years in people with cancer, migraines, wound healing, and more. (Comp Med, Aug 2011; 61(4): 339–345)

Pulsed Electromagnetic Field Therapy (PEMF) is even FDA approved in the U.S. for bone healing and depression — and in Puerto Rico, static and pulsed magnetic therapy has been used since the late 1960s for over 100 different conditions, including cancer support.

When applied correctly, North pole magnets may help create an internal environment less favorable to tumor growth, while also reducing side effects and supporting the body’s natural healing potential — safely and non-toxically.

Yes — children can safely use magnets, when applied correctly and with proper supervision. In fact, I’ve seen the benefits personally — not just with patients, but in my own family.

I began magnetic therapy myself at just six years old for an earache. Later, Dr. Sierra applied magnets to my lower abdomen for menstrual pain — and I never suffered from it again. I recommend magnets to every young girl as a gentle, natural option.

Our own children began using magnets during their first episodes of earaches or throat infections. During pregnancy, they even benefited from polarized magnetic water, since it was the water I drank — and we’ve continued the tradition ever since. It not only tastes wonderful, but also supports wellness from the inside out.

Many parents now use magnets for:
• Minor injuries and sports recovery — helping the body heal faster
• Calming anxiety and promoting better sleep
• Maintaining energy and balance with magnetic jewelry during the day

However, I do not recommend healthy children sleep on magnetic beds every night, unless there’s a neurological condition — in which case, it can be incredibly beneficial.

As a parent, I understand the challenges of navigating today’s medical landscape: frequent medications, antibiotics, and excessive immunizations. You can feel confident that magnets — when used properly — do not cause side effects and offer a safe alternative or complement.

That said, always:
• Use North (negative) polarity magnets for children
• Choose lower gauss or smaller-sized magnets
• Start with short sessions (30–60 minutes once or twice a day)
• Supervise them during use, and avoid small loose magnets that could be swallowed

Evaluate your child’s condition and apply magnets accordingly. And of course, always complement with healthy nutrition, chiropractic care, and appropriate supplementation when needed.

You’ll see your children grow strong, balanced, and healthy — supported by nature, not burdened by chemicals.

Dr. Sierra’s Naturals is a professional-grade supplement line developed by experienced healthcare providers with decades of clinical practice. Our commitment is to offer natural, pure, and highly effective formulas that support your health with integrity.

Here’s what makes our supplements different:
• Evidence-based functional formulas: Each supplement is thoughtfully created to serve a specific purpose in the body. We combine ingredients with proven synergy, many of which have been used by our own family and patients for over 30 years.
• Premium-quality ingredients: We carefully select herbal extracts, vitamins, minerals, and natural compounds tested for purity, potency, and the absence of contaminants such as heavy metals, pesticides, or unnecessary additives.
• Manufactured in FDA-registered, GMP-certified facilities: This ensures that each capsule, tablet, or liquid meets the highest standards of safety, consistency, and quality.
• No unnecessary fillers: We avoid artificial colors, flavors, and common allergens whenever possible. Most products are free from gluten, dairy, and soy.
• A holistic philosophy: Dr. Sierra’s Naturals supports the body’s systems naturally. These supplements are designed to complement a healthy lifestyle that includes mindful nutrition, magnetic therapy, movement, and stress management.
• Clinically tested approach: Each formula has been refined over years of use in clinical practice — not driven by trends, but by real results and long-standing experience.

Not all pillows are created equal — and each type serves a specific purpose in your healing journey. Choosing the right one can make a significant difference in your daily comfort and long-term results. Below are the three main types of therapeutic pillows and when to use them:

1. Accommodation/Displacement Pillows

These pillows are designed to relieve pain or discomfort by conforming to and stabilizing an existing injury or condition.
• Purpose: Provide temporary comfort and support, especially in acute phases.
• When to use: Short-term use during intense discomfort — such as after whiplash, a significant sprain, or strain.
• Main benefit: Conforms to the injured area without forcing postural correction.

Example:
• Chiroflow Pillow

2. Orthopedic Support Pillows

These pillows are made to correct and maintain proper cervical alignment while sleeping by offering the right amount of resistive feedback to the neck and upper back muscles.
• Corrective stage: Help eliminate symptoms by treating the underlying cause and restoring proper function.
• Maintenance stage: Sustain long-term spinal health and prevent recurrence.
• Main benefit: Supportive structure helps reduce headaches, muscle and joint tension, arthritis discomfort, and improves nerve function.

Examples:
• Tri-Core Standard
• Tri-Core Gentle

3. Combination Pillows (Accommodation + Support)

These pillows combine the benefits of both accommodation and support, making them ideal to use throughout the treatment process.
• Great when the condition changes or when the user needs flexibility.
• Offers both immediate comfort and gradual correction.

Examples:
• Cervalign
• Chiroflow

✔️ Need Help Choosing?

We invite you to visit our showroom in San Juan or give us a call. Our team will gladly assist you in choosing the pillow that best fits your needs and comfort level.

⚠️ Please note: Due to hygiene and health regulations, pillows are non-returnable.

At Health Magnetic Store & More, we strive to process and ship your order as quickly and safely as possible.

Processing Time:
• Orders are processed the same day and shipped within a maximum of 2 business days after payment is received.
• Custom or backordered items may take longer. We will notify you if there is a delay.

Shipping Methods:
• We ship via USPS.
• You will receive a tracking number via email once your order has shipped.

Shipping Rates:
• Shipping costs are calculated at checkout based on the destination and weight of your package.
• Free shipping is available on all orders of $58 or more (before tax and after discounts) within the U.S. and Puerto Rico.

Local Pickup:
• You may also pick up your order at our store in San Juan, Puerto Rico. Simply select “Local Pickup” at checkout and wait for confirmation before arriving.

Delivery Time:
• Most orders to Puerto Rico and the U.S. mainland arrive within 3–7 business days.
• International delivery times vary based on location and customs processing.

Incorrect Shipping Information:
• Please make sure your address is accurate. We are not responsible for delays or losses due to incorrect or incomplete shipping information.

Lost or Damaged Packages:
• If your package is lost or arrives damaged, please contact us within 7 days of delivery so we can assist you in filing a claim or sending a replacement if applicable.

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We accept returns or exchanges only under the following conditions:
• The product must be unused and sealed in its original packaging.
• The return or exchange request must be made within 10 days of the purchase date.
• Manufacturing defects: If a product arrives defective or damaged, please notify us within 14 days of receipt for a replacement.
• Wrong item shipped: If we sent the incorrect product, we will gladly correct it.

Please note that pillows, supplements, creams, and magnetic therapy products are non-returnable.

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