Page 1 - Reviews - Dr. Mercola, Magnesium Advanced, 90 Capsules - iHerb
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Customer Ratings & Reviews

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4.8
Based on 5,033 ratings
4,358
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English (UK)
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Bonnie
Posted on 5/08/2026
United States
39
11
0
8
It helps with sleep
Verified Purchase
Dr. Berg said that magnesium threonate helps repair brain nerves, and can also help with sleep, prevent hair loss, and aid calcium absorption, so I bought it to try. Taking one tablet an hour before bedtime helps me sleep better. It comes in a glass bottle, and the quality is good; it won't turn yellow or develop an odor after a while. I will continue to repurchase it.
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Maria
Posted on 5/10/2025
Moldova
3
1
0
1
Produs minunat pentru liniștire
Verified Purchase
I ordered this product to calm my brain. Now I feel more relaxed and I am sure that after 3-6 months I will feel great🥰
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iHerbCustomer
Gold
Posted on 15/09/2025
South Korea
640
9
5
97
Excellent!
Verified Purchase
IHERB shipping is fast, and the quality and ingredients are top-notch. The packaging is good, and the size is perfect. The supplements I purchased from iHerb are beneficial for my health and immunity. Use the recommended dosage, as well as the frequency of use, of your regular supplements. Consistent use of supplements offers numerous benefits to the body. Take them consistently to live a healthy life. Wishing you all happiness and good health...💯🙏😍👍
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Viktorija
Posted on 30/08/2025
Latvia
36
0
1
8
I recommend it to everyone who has problems with sleep!
Verified Purchase
I was looking for magnesium threonate and accidentally ordered this one and lo and behold, my sleep finally improved! It really works. On my recommendation, my mother and mother-in-law are already taking it and recommend it to their friends, as they really did start sleeping much better. I take it as per the package: 1 capsule at lunch and 2 an hour before bed. My mother takes it only before bed and that's enough for her. The price is not cheap, but the package is big and lasts a long time.
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iHerbCustomer
Gold
Posted on 26/03/2026
Philippines
357
0
12
152
Essential
Verified Purchase
Aside from Bisglycinate, been researching for another kind of magnesium that i can take and this one tick the boxes. And this kind is also highly absorbable form of magnesium. It is primarily used to enhance cognitive function, improve memory, boost focus, and support sleep. By raising brain magnesium levels, it may promote synaptic density and protect against cognitive decline. And ive been hearing Dr Mercola, so this might be quality.
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NutriHealth
Posted on 19/02/2026
Ukraine
35
7
0
51
Magnesium threonate for the brain and nervous system
Verified Purchase
This formula is unique in that it contains magnesium L-threonate, one of the few forms of magnesium capable of crossing the blood-brain barrier. In practice, this is felt not as a muscle relaxation, but as a more profound effect on the brain: calmer reactions, less tension, improved concentration, and easier sleep. This form works gently, without a pronounced laxative effect or stomach discomfort. The effect accumulates gradually: nervous system overload is reduced, tinnitus subsides, sleep becomes deeper, and it's easier to maintain attention during the day and avoid succumbing to fatigue. For situations of chronic stress, mental strain, sleep disturbances, or loss of concentration, threonate feels truly effective. It's convenient to use, acts predictably and smoothly, and has no side effects. This is one of those products whose effect manifests itself precisely where traditional forms of magnesium fail—at the level of cognitive function and nervous system stability.
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Gold
Posted on 13/10/2025
Saudi Arabia
1,222
12
182
543
Excellent for concentration
Verified Purchase
I ordered it for myself and my father because his concentration has weakened with age, and I noticed that it has noticeably strengthened his memory and concentration. He uses only two pills in half a day.
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AHMAD1987
Gold
Posted on 11/10/2025
Jordan
2,343
8
3
898
Distinguished
Verified Purchase
Magtein® Magnesium L-Threonate Dietary Supplement Providing Quality Products Since 2001 Bone and Joint Comfort Detoxification Support Enhanced Bioavailability There are many different forms of magnesium, but not all of them benefit your body in the same way. Our Advanced Magnesium is backed by extensive research demonstrating exceptional absorption and a unique ability to cross the blood-brain barrier. It is the only magnesium compound proven to effectively raise magnesium levels in the brain while supporting other key functions within your body.
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IrinaUa
Silver
Posted on 23/09/2025
Ukraine
224
3
33
191
Quality magnesium that really works!
Verified Purchase
I have been taking Dr. Mercola's Advanced Magnesium for a few weeks now and have noticed noticeable changes: my sleep has improved, muscle tension has decreased, and frequent headaches have gone away. I really liked that the magnesium in this formula is easily absorbed and does not cause digestive problems, as is the case with some other supplements. The capsules are medium-sized, odorless, and easy to swallow. The large package of 270 capsules is a great value and will last a long time. I recommend it to anyone looking for an effective form of magnesium for sleep, the nervous system, and muscles.
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Viktoriia
Silver
Posted on 18/03/2026
Germany
138
40
0
121
My peace of mind and health in one jar — Dr. Mercola did not disappoint!
Verified Purchase
This magnesium has been a real revelation for me! It feels like the quality of the Dr. Mercola brand is at its best: each ingredient is carefully selected to ensure that this important mineral is absorbed as efficiently as possible. I want to tell you a little more about the form of this magnesium so that you can make your choice. The Dr. Mercola Magnesium Advanced supplement contains one of the most innovative and effective forms of this mineral - magnesium L-threonate. 1. It is the only form that penetrates the brain Unlike conventional forms of magnesium (oxide or citrate), L-threonate is able to overcome the blood-brain barrier. This means that it enters directly into the brain cells, significantly increasing the concentration of magnesium where it is most needed for cognitive function. 2. It is maximum bioavailability This form has the highest level of absorption by cells. Due to its specific molecular structure, the body absorbs L-threonate much more efficiently than other compounds, which allows you to get real results even with a lower dosage of the pure mineral. 3. Neuroplasticity and memory Magnesium L-threonate stimulates the formation of new connections between neurons (synapses). Studies show that it helps: - Improve short-term and long-term memory. - Increase learning speed and concentration. - Reduce the manifestations of "brain fog" and age-related brain changes. 4. This is deep sleep without "sleepiness" in the morning This form of magnesium regulates GABA receptors and melatonin levels, which helps you fall asleep faster. The main feature is that it improves the quality of the deep phase of sleep, so in the morning you feel alert and productive, not broken. 5. It is digestive comfort Many types of magnesium have a laxative effect and can cause abdominal discomfort. L-threonate from Dr. Mercola is designed to be as gentle on the stomach as possible and not cause diarrhea. Therefore, this magnesium has become a real discovery for me! It feels like the quality of the Dr. Mercola brand is at its best: each ingredient has been carefully selected to ensure that this important mineral is absorbed as efficiently as possible. A large container of 270 capsules is a huge advantage, as it lasts for a long time. Despite the solid size of the jar, the capsules are easy to swallow, and any unpleasant taste is completely absent. After a month of taking it, I noticed significant results: My memory has improved significantly. My sleep has become deep and calm, like in childhood. Even my mood and hormones have returned to normal - calmness has become my second "self". Conclusion: If regular magnesium works well for muscles, then Magnesium Advanced is "fuel" for your intelligence and psycho-emotional peace. This is truly a premium product that everyone should try! If my review was useful to you, press "like"! You get a plus in your karma, and my magnesium gets a reason to be proud of itself! 😉👍
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