Amazon.com: Customer reviews: Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules Ultra-Absorbable Magnesium - Memory, Focus & Overall Cognitive Performance Boost - Non-GMO, Gluten-Free
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  • Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules...
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Customer reviews

4.6 out of 5 stars
4.6 out of 5
7,764 global ratings
5 star
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4 star
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3 star
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2 star
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Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules Ultra-Absorbable Magnesium - Memory, Focus & Overall Cognitive Performance Boost - Non-GMO, Gluten-Free

Life Extension Neuro-Mag Magnesium L-Threonate, 90 Vegetarian Capsules Ultra-Absorbable Magnesium - Memory, Focus & Overall Cognitive Performance Boost - Non-GMO, Gluten-Free

byLife Extension
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Top positive review

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N
5.0 out of 5 starsIncredible
Reviewed in the United States on October 10, 2020
I take this in conjunction with another supplement that I’ve also found helpful and wrote a review on. I can’t speak to its use alone, so I’m sharing the review I wrote for the other supplement:

I’m someone who has had trouble falling asleep and staying asleep since I was probably 8. 22 years later now, I’ve tried many things short of the addictive route to help with sleep. Yoga nidra meditation is helpful, but sometimes it just doesn’t work. Hypnosis is helpful, but sometimes my ears get overstimulated from listening. Therapy helped quite a bit, as did getting on a schedule and a strict bedtime routine, but there are still occasional nights where I wake up at 2am, can’t get back to sleep, and have to commute over an hour to work, then back in the evening. I also tried a magnesium citrate or glycinate, which helped a lot initially, but then the stress of grad school overrode the positive effects that the magnesium had on my sleep.
Fast forward to last when I listened to Dr. Andrew Huberman and he recommended l-theanine and magnesium threonate. I ordered them right away after scouring reviews to be sure I got a good product. I’ve taken this with the l-theanine every night an hour before bed and it works very well. If you see the screenshot I’ve attached, Wednesday was the first night I took it and you can see how different my sleep duration was from the previous few nights, and how my duration has stayed consistently high for Thursday and Friday night. I highly recommend this product.
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321 people found this helpful

Top critical review

All critical reviews›
la0508
VINE VOICE
1.0 out of 5 starsI had a weird excruciating reaction to magnesium l-threonate
Reviewed in the United States on December 6, 2018
Magnesium l-threonate does not agree with me! Other types of magnesium-no problem, but this caused a reaction so severe that I will NEVER swallow another Mg l-threonate capsule again. I bought this for sleep; my brother and his wife use it, and they like it very much. But for me, it caused some kind of deep cramping in my thighs so excruciating I can find no words to describe it. It did not seem like a muscle cramp, but more like a vascular cramp, as if something had a hold of your femoral artery and was cruelly twisting it. I do know pain. I had to undergo abdominal surgery while conscious without anesthesia on one painful occasion, and there have been several other unfortunate episodes, so believe me when I say this was painful. Painful enough that the thought of a recurrence of this pain actually strikes terror in my heart! I I know this sounds very melodramatic, but it is the truth. I do not believe my reaction was due to an interaction of this supplement, as I was not taking anything else at the time. Also, I am generally healthy, ultrasound has shown no evidence of any vascular plaque or ischemia. Also, it wasn't just this brand, as I tried several brands. The cramping occurred on 2 occasions, both times when I took this supplement, within a couple hours of taking it. I also enjoyed a vascular headache with it., both times when I took it. Not fun, but nothing like the cramping in the legs. Outside of these 2 episodes, I am not troubled with cramping.
Anyway, I don't think there is anything wrong with this brand, I know most people find it very useful. I have never had a reaction like this to any supplement. I hope nobody else ever has a reaction like I did.
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259 people found this helpful

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From the United States

N
5.0 out of 5 stars Incredible
Reviewed in the United States on October 10, 2020
Verified Purchase
I take this in conjunction with another supplement that I’ve also found helpful and wrote a review on. I can’t speak to its use alone, so I’m sharing the review I wrote for the other supplement:

I’m someone who has had trouble falling asleep and staying asleep since I was probably 8. 22 years later now, I’ve tried many things short of the addictive route to help with sleep. Yoga nidra meditation is helpful, but sometimes it just doesn’t work. Hypnosis is helpful, but sometimes my ears get overstimulated from listening. Therapy helped quite a bit, as did getting on a schedule and a strict bedtime routine, but there are still occasional nights where I wake up at 2am, can’t get back to sleep, and have to commute over an hour to work, then back in the evening. I also tried a magnesium citrate or glycinate, which helped a lot initially, but then the stress of grad school overrode the positive effects that the magnesium had on my sleep.
Fast forward to last when I listened to Dr. Andrew Huberman and he recommended l-theanine and magnesium threonate. I ordered them right away after scouring reviews to be sure I got a good product. I’ve taken this with the l-theanine every night an hour before bed and it works very well. If you see the screenshot I’ve attached, Wednesday was the first night I took it and you can see how different my sleep duration was from the previous few nights, and how my duration has stayed consistently high for Thursday and Friday night. I highly recommend this product.
Customer image
N
5.0 out of 5 stars Incredible
Reviewed in the United States on October 10, 2020
I take this in conjunction with another supplement that I’ve also found helpful and wrote a review on. I can’t speak to its use alone, so I’m sharing the review I wrote for the other supplement:

I’m someone who has had trouble falling asleep and staying asleep since I was probably 8. 22 years later now, I’ve tried many things short of the addictive route to help with sleep. Yoga nidra meditation is helpful, but sometimes it just doesn’t work. Hypnosis is helpful, but sometimes my ears get overstimulated from listening. Therapy helped quite a bit, as did getting on a schedule and a strict bedtime routine, but there are still occasional nights where I wake up at 2am, can’t get back to sleep, and have to commute over an hour to work, then back in the evening. I also tried a magnesium citrate or glycinate, which helped a lot initially, but then the stress of grad school overrode the positive effects that the magnesium had on my sleep.
Fast forward to last when I listened to Dr. Andrew Huberman and he recommended l-theanine and magnesium threonate. I ordered them right away after scouring reviews to be sure I got a good product. I’ve taken this with the l-theanine every night an hour before bed and it works very well. If you see the screenshot I’ve attached, Wednesday was the first night I took it and you can see how different my sleep duration was from the previous few nights, and how my duration has stayed consistently high for Thursday and Friday night. I highly recommend this product.
Images in this review
Customer image
Customer image
321 people found this helpful
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Mybluemind
5.0 out of 5 stars Great product!
Reviewed in the United States on September 30, 2017
Verified Purchase
This is my third brand of Magnesium Threonate and definitely the best. I am 64, still working. My job is very stressful and mentally and physically demanding. I observe better memory, much more mental and physical endurance. I highly recommend this product and I hope it will do the same for you (I take one in the morning and two in the evening). PS. I almost never write reviews.
630 people found this helpful
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Sola
5.0 out of 5 stars I honestly thought this was BS, but it's done wonders for ADHD
Reviewed in the United States on May 18, 2021
Verified Purchase
This was recommended to me by a friend as a supplement to regular medication for ADHD, and it's been wonderful. I have a lot of trouble with executive function: starting tasks is the hardest thing, and i put stuff off for months. After about 20 days of taking this, i noticed that i just... get up and do things. I have a plan for the day and i get through as much of it as my energy will allow, and i've been sticking with projects for weeks at a time. This is a 180 turnaround from the rest of my life, except on the highest doses of ADHD medication. I've been able to cut down my medication to just a couple of times a week.

By the way, a lot of the other reviewers don't seem to understand the ratio of one form of chemical to another. L-threonate is present in a given percentage in an amount of magnesium that has been processed to produce the L-threonate form: isolating it from the rest of the magnesium would be an expensive and unnecessary lab process.

If you wanted to eat strawberry seeds, you wouldn't bother separating them from the strawberry first.

Therefore, in 3 capsules, there is 2000 mg magnesium, 144mg of which is magnesium l-threonate.

THIS IS NOT FILLER. To say it's filler is like saying the water in iced tea is a filler.

I have weighed the contents of the capsules i have received across three bottles on a lab scale, and they always come up to about 2000mg per three capsules exactly as indicated. There is an amount of dust inside the bottle, but no more than you would find in any powdered supplement bottle, and all the capsules have always been intact.

In short, if you have ADHD i encourage you to try this supplement for 2-3 months. It takes about a month to reach effectiveness, and improvement is noticeable every week from there, or it was for me. I take only the supplements i absolutely need, and along with vitamin D, this has made it onto my permanent lifelong roster.
154 people found this helpful
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la0508
VINE VOICE
1.0 out of 5 stars I had a weird excruciating reaction to magnesium l-threonate
Reviewed in the United States on December 6, 2018
Verified Purchase
Magnesium l-threonate does not agree with me! Other types of magnesium-no problem, but this caused a reaction so severe that I will NEVER swallow another Mg l-threonate capsule again. I bought this for sleep; my brother and his wife use it, and they like it very much. But for me, it caused some kind of deep cramping in my thighs so excruciating I can find no words to describe it. It did not seem like a muscle cramp, but more like a vascular cramp, as if something had a hold of your femoral artery and was cruelly twisting it. I do know pain. I had to undergo abdominal surgery while conscious without anesthesia on one painful occasion, and there have been several other unfortunate episodes, so believe me when I say this was painful. Painful enough that the thought of a recurrence of this pain actually strikes terror in my heart! I I know this sounds very melodramatic, but it is the truth. I do not believe my reaction was due to an interaction of this supplement, as I was not taking anything else at the time. Also, I am generally healthy, ultrasound has shown no evidence of any vascular plaque or ischemia. Also, it wasn't just this brand, as I tried several brands. The cramping occurred on 2 occasions, both times when I took this supplement, within a couple hours of taking it. I also enjoyed a vascular headache with it., both times when I took it. Not fun, but nothing like the cramping in the legs. Outside of these 2 episodes, I am not troubled with cramping.
Anyway, I don't think there is anything wrong with this brand, I know most people find it very useful. I have never had a reaction like this to any supplement. I hope nobody else ever has a reaction like I did.
259 people found this helpful
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Jim Cawthon,
5.0 out of 5 stars Happy . . .
Reviewed in the United States on July 25, 2017
Verified Purchase
These are fabulous! I have social anxiety and this
supplement has allowed me to be around people
in a crowded social scene, at least for a couple of hours.
It also helps with thinking and concentration. But
the main thing for me is getting past that wall of social
anxiety. So nice to be around people again, even
for just a little time.
525 people found this helpful
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Etienne Bryant
5.0 out of 5 stars I have two thyroid disorders. I have more energy ...
Reviewed in the United States on May 16, 2017
Verified Purchase
I have two thyroid disorders. I have more energy and clarity of thinking after taking this product for one week.
359 people found this helpful
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Katrina
5.0 out of 5 stars Brain Fog dissipated
Reviewed in the United States on February 26, 2021
Verified Purchase
Morning of Day 4 the brain fog is gone. After 3 years of the cloud living in my consciousness slowly putting me to sleep, I have taken initiative and made the effort to stop the numbing effects of whatever it is that is slowing me down and not caring. THIS is Working and working fast. I am not a paid or bribed in any way to write a review. I want to raise my hand for all of those who seek a genuine review in a sea of unilateral bribe contracts across google. So far, this is a true product. I will write again for I predict my functioning may get better with continued use. Awesome I recommend Neuro-mag🎁
101 people found this helpful
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Jason
5.0 out of 5 stars Excellent for keeping the edge and long term health benefits
Reviewed in the United States on October 25, 2017
Verified Purchase
Research has shown this form of magnesium increases brain function and memory performance and is likely to help delay or avoid dementia. I am a 37 year old technology professional at the peak of my game, I take Neuro-mag not to address a deficiency but to help ensure I stay there for as long as possible. I've taken it for 2 months and the best description of its effect is my brain feels "sharp" all the time, I already had an exceptional memory. I'd say I recall the same information but it takes less mental effort to do so, rather than intentionally retrieving information it just "pops" into my head.
294 people found this helpful
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Jessi C.
5.0 out of 5 stars Five Stars
Reviewed in the United States on August 11, 2016
Verified Purchase
This is the ONLY product, natural or pharmaceutical that has helped control my migraines. MUST TRY!!
423 people found this helpful
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Amazon Customer
5.0 out of 5 stars If you have depression w/ mild constipation
Reviewed in the United States on July 21, 2021
Verified Purchase
This is the second or third review I have ever written on Amazon in 10 years. I do not like writing reviews but I think this could really help someone struggling with depression. Ive had mild constipation for 10 years that I just dealt with. I would go #2 every 3-4 days and never really thought about it as abnormal. Anyways, to the point. I have been taking 6 pills in the AM for two weeks and my mood has been oddly positive (I'm use to having some sort of gloomy feeling). I have been going #2 once or twice a DAY and have a lot of SMOOTH and UN-ANXIOUS energy. My voice doesn't tremble and I have a new found confidence. My depression has completely gone away and nothing really bothers me anymore (I have been off anti-depressants for years). If you have depression with constipation this may be your golden ticket for relief. Also, I’m 29 and fit. Hope this helps.
55 people found this helpful
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