An Essential Mineral for Daily Health
300+
Magnesium supports over 300 enzymatic functions in the body crucial for overall wellness and daily energy release.
4th
It is the fourth most abundant mineral in the human body and plays an essential role in daily health.
Magnesium: Foundational Support with Citrate & Glycinate
Adequate magnesium intake plays a key role in supporting proper nerve function, muscle comfort, and restful sleep quality. Isotonix Magnesium is expertly formulated with two highly bioavailable forms of magnesium — citrate and glycinate — to maximize absorption. It helps the body maintain healthy magnesium levels to support muscle health and comfort, sleep quality, and bone health.
Product Classification
Gluten-Free
No Detectable GMO
Vegan
Isotonic
Essential Support Beyond Daily Nutrition
Magnesium plays a vital role in supporting overall health and physical well-being. As an important component of the mineralized part of bone, it works alongside calcium and vitamin D to help keep bones strong, support bone mineral density, and assist the normal metabolism of calcium and potassium in adults. Additionally, magnesium supports the transmission of nerve impulses to the muscles to promote muscle comfort, healthy nervous tissue function, and restful sleep quality.
Key Ingredients & Benefits
Magnesium
Supports Bone & Mineral Health
Promotes Muscle & Nerve Function
Maintains Normal Regulation of Heart & Blood Pressure
Potassium
Maintains Fluid Balance
Promotes Muscle Relaxation
Directions For Use
Pour one small capful (3.3 g) of Isotonix® Magnesium into your favorite cup.
Add 2 fl oz (60ml) of water for each capful and mix.
For best results, take twice daily — one capful in the morning and evening. If mixed with other Isotonix® products, add 2 oz (60ml) of water for each capful.
Isotonix Delivery System
:05 Minutes
Isotonix Liquid Vitamins
- Formulated to survive digestion.
- Delivers concentrated nutrients to the site of absorption.
- Contains no fillers or binders.
- No artificial color or flavors.
:40 minutes
Standard Vitamin Tablet
- Contains lab-created coatings and lubricants.
- Often contains artificial colors, nutrients and flavors.
- Limited absorption of nutrient utilization.
Frequently Asked Questions
What benefits does magnesium provide the body?
With regards to bone health, it is an important component of the mineralized part of bone, and supports the normal metabolism of calcium and potassium in adults. Magnesium works together with calcium and vitamin D to help keep bones strong and support bone mineral density. Magnesium also supports muscle and the transmission of nerve impulses to the muscles. Adequate magnesium levels are also important for cardiovascular health. Magnesium supports a healthy heart.
How much magnesium should I be getting, and why do I need a magnesium supplement versus getting it from my normal diet?
The recommended dietary allowance for adult males between the ages of 19 and 30 should be receiving 400 mg of magnesium daily. Adult females of the same age should receive 310 mg daily. For older males, the recommendation is 420 mg daily, while older females should consume 320 mg daily. Daily lifestyle factors and poor dietary choices adversely affect the amount of magnesium we are ingesting. Foods rich in magnesium include whole grains, nuts and green vegetables, which are good sources of magnesium because of their chlorophyll content. Meats, starches, dairy products and refined and processed foods – which make up a large portion of the typical diet in today’s society – contain low amounts of magnesium. High-fat diets provide lesser amounts of magnesium. For these reasons, it is important to help balance our diets with nutritional supplements that can provide additional nutritional assistance.
Why were these forms of magnesium (citrate and glycinate) chosen?
Both forms of magnesium were carefully chosen based on scientific research, as they work well within the Isotonix delivery system.
Should this product be taken on an empty stomach?
Yes. For maximum absorption, this product should be taken on an empty stomach.
Is there anyone who should not take this product?
Anyone who has an ongoing medical condition, is pregnant or breastfeeding, or is taking prescription medication should speak with their healthcare provider before taking this product. Also, magnesium should be used cautiously by those with reduced kidney function.
What other health and nutrition products can be taken with Isotonix Magnesium?
Isotonix Magnesium can be taken with Isotonix OPC-3, Isotonix Calcium Plus, and Heart Health™ Omega III Fish Oil with Vitamin E.
* This product is not intended to diagnose, treat, cure or prevent any disease.
Reviews
Customer Rating
4.9 out of 5 star rating.
(65 reviews)
would recommend this product.
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Love this Isotonix Magnesium very much. After i srarted this supplement. My sleeping quality is improved.
Cramp free and sleep well
by ONG
Shop Consultant
on 21/6/2026
Use to suffered leg cramp in the middle of the night. With 1 cap Mix with 2 caps of OPC3, I NO Longer suffer leg cramp in the middle of the night and I gained a good night sleep as well. Isotonix Magnnesium Rocks!
Better Sleep & Relief from Menstrual Cramps
by Lee
Shop Consultant
on 25/5/2026
I used to experience painful foot cramps whenever my menstrual cycle was approaching. Ever since I was introduced to Magnesium, it has been a lifesaver whenever the cramps start to kick in.
Besides helping with cramps, it has also improved both my husband’s and my sleep quality. We take it about an hour before bedtime, and it helps us relax and enjoy a much deeper, more restful sleep.
It has definitely become part of our daily routine!
Works great for menses
by Anonymous
on 25/5/2026
Less uncomfort and smooth after taking this magnesium.
Recovery Support Activated, Goodbye Jaw Tension
by LUM
Shop Consultant
on 24/5/2026
A shot of Magnesium before bed has been a great support for my sleep quality and muscle recovery.
I used to feel a lot of body tightness and tension in my head after a long day of work. Since taking Magnesium in the evenings, my jaw muscles feel more relaxed, and I no longer grind my teeth during sleep.
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