Customers find this magnesium supplement effective for sleep quality, helping them fall asleep faster and improve sleep quality, while also supporting brain health and mental clarity. The supplement receives positive feedback for its unique form of magnesium, with one customer noting it’s the most bioavailable form, and customers appreciate its value for money. While many report it prevents headaches, some experience severe gastric distress.
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13 reviews for NOW Foods Supplements, Magtein™ with patented form of Magnesium (Mg), Cognitive Support*, 90 Veg Capsules
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Ione Brasil –
Surprisingly Effective for Mental Clarity and Focus
I started taking the NOW Foods Magtein Magnesium L-Threonate because I wanted to support my focus and reduce brain fog. After a couple of weeks of consistent use, I genuinely noticed clearer thinking and more mental stamina throughout the day. It also helped me sleep better at night without making me groggy in the morning, which was a huge bonus I didn’t expect. No stomach discomfort either, unlike some other magnesium supplements I’ve tried.This supplement is now part of my daily routine. I love that it’s in a veggie capsule and doesn’t contain unnecessary fillers. It feels like a high-quality product and definitely worth it if you’re looking to support cognitive health naturally. I just wish I had started using it sooner.
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Avril L –
Magtein makes a difference for me
Magtein is a dietary supplement product that I actually can feel. I find my sleep to be deeper, my concentration to have more endurance, and in general I feel more relaxed. I highly recommend this product because when I run out, I notice a major difference in the quality of my cognitive function.
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taylor –
Didn’t realize how much this was working!
I started taking this along with omega 3/6/9 for the cognitive benefits, to help naturally treat my otherwise treatment-resistant ADHD. I ran out of this for a little while, and was taking just the omega supplement, and only then did I realize that it was really this magnesium that was doing all the heavy lifting. It improves my focus, my clarity, my memory, and my recall. I’m able to speak much more eloquently, I don’t have words at the tip of my tongue, I don’t lose track of tasks, and I don’t get embarrassed at work by my neurodiversity like I used to.And I didn’t realize how much it helped my sleep!! I’m a big night owl, and I used to stay up late, and even going to bed at 2 or 3 am I’d still struggle to fall asleep. Now, I’m getting naturally sleepy around 11-12, and fall asleep fast.There aren’t a lot of supplements that work so well that I take notice, but this has made too much of an impact for even me to ignore lol. I’ll probably take this for the rest of my life honestly.
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Neuronautics –
Truly Effective Magnesium Supplement—Great for Sleep and Stress
I’ve tried various forms of magnesium supplements, but NOW Brand Magtein has genuinely impressed me. Magtein is unique because it specifically helps calm down overactive glutamate in the brain, meaning it’s great if you’re someone who struggles with overstimulation, stress, or caffeine jitters. I’ve personally noticed it helps me fall asleep quicker, and most importantly, I wake up feeling refreshed and mentally clear.One minor point: the bottle doesn’t come with a moisture-absorbing packet inside, so be mindful to store it carefully to avoid moisture. That said, it’s an outstanding value for the price compared to similar Magtein products out there.If you’re looking for magnesium that actually helps manage stress, enhances sleep quality, and reduces overstimulation, I wholeheartedly recommend giving this a try. It’s become a staple for my nightly routine.
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Katrina Czyrba –
Great results
I noticed incredible results with this product. It will be part of my regiment for years to come. I will never go a day without it. NOW is a great brand to purchase from and the supplement is affordable.
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Jason –
Good products
Very useful for me. Helps me a lot
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Harry R Humphries –
Changed my life!!!
I’ve suffered from tinnitus due to tmjd for a few years now. It’s caused me difficulty to get to sleep and stay asleep. This magtein has changed my life! It helps me not only get to sleep but stay asleep. Magtein has replaced my muscle relaxer and melatonin! Also, I have been taking omeprazole for over 20 years, but no one told me Proton pump inhibitors depleted magnesium! If your taking omeprazole you need a magnesium supplement!!! I’ve only used this brand and it’s been great for me!!!
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Bob –
I use this every day.
I take this magnesium Threonate for ocular migraines. Works extremely well. Research all the magnesium’s. NOW products were recommended by my physician. Very clean, no fillers.
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Richard P –
Better for taking in the day
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Mr K.K. –
Was initially impressed that this product seemed to work with other supplements to slightly boost my intuition, unfortunately that initially also came with quite severe headaches and blood pressure issues. I have since traced the side affects to either excess B12 supplements in my diet or excess total magnesium due to another form of magnesium that I was also taking at the same time (after discontinuing both I was able to gradually get used to this form of magnesium). Just keep in mind that if you have blood pressure issues / severe headaches shortly after taking this for a short time it may possibly be linked to this product / other dietary adjustments may be required.
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IV –
Paid 43 euro/90 capsules and the product looks suspiciously low quality at first inspection. A lot of the content just spiled outside the capsule into the container.
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ravi shankar –
There is no doubt that Magnesium L-threonate is the best form magnesium but it is bit costly than gluconate,but it is worth of buying. For better results need to take 4-5 capsules a day because elemental magnesium contain is only 144 mg and for adults more than 400 mg per day is required.
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A –
It makes such a difference in memory and cognitive function.
Ione Brasil –
Surprisingly Effective for Mental Clarity and Focus
I started taking the NOW Foods Magtein Magnesium L-Threonate because I wanted to support my focus and reduce brain fog. After a couple of weeks of consistent use, I genuinely noticed clearer thinking and more mental stamina throughout the day. It also helped me sleep better at night without making me groggy in the morning, which was a huge bonus I didn’t expect. No stomach discomfort either, unlike some other magnesium supplements I’ve tried.This supplement is now part of my daily routine. I love that it’s in a veggie capsule and doesn’t contain unnecessary fillers. It feels like a high-quality product and definitely worth it if you’re looking to support cognitive health naturally. I just wish I had started using it sooner.
Avril L –
Magtein makes a difference for me
Magtein is a dietary supplement product that I actually can feel. I find my sleep to be deeper, my concentration to have more endurance, and in general I feel more relaxed. I highly recommend this product because when I run out, I notice a major difference in the quality of my cognitive function.
taylor –
Didn’t realize how much this was working!
I started taking this along with omega 3/6/9 for the cognitive benefits, to help naturally treat my otherwise treatment-resistant ADHD. I ran out of this for a little while, and was taking just the omega supplement, and only then did I realize that it was really this magnesium that was doing all the heavy lifting. It improves my focus, my clarity, my memory, and my recall. I’m able to speak much more eloquently, I don’t have words at the tip of my tongue, I don’t lose track of tasks, and I don’t get embarrassed at work by my neurodiversity like I used to.And I didn’t realize how much it helped my sleep!! I’m a big night owl, and I used to stay up late, and even going to bed at 2 or 3 am I’d still struggle to fall asleep. Now, I’m getting naturally sleepy around 11-12, and fall asleep fast.There aren’t a lot of supplements that work so well that I take notice, but this has made too much of an impact for even me to ignore lol. I’ll probably take this for the rest of my life honestly.
Neuronautics –
Truly Effective Magnesium Supplement—Great for Sleep and Stress
I’ve tried various forms of magnesium supplements, but NOW Brand Magtein has genuinely impressed me. Magtein is unique because it specifically helps calm down overactive glutamate in the brain, meaning it’s great if you’re someone who struggles with overstimulation, stress, or caffeine jitters. I’ve personally noticed it helps me fall asleep quicker, and most importantly, I wake up feeling refreshed and mentally clear.One minor point: the bottle doesn’t come with a moisture-absorbing packet inside, so be mindful to store it carefully to avoid moisture. That said, it’s an outstanding value for the price compared to similar Magtein products out there.If you’re looking for magnesium that actually helps manage stress, enhances sleep quality, and reduces overstimulation, I wholeheartedly recommend giving this a try. It’s become a staple for my nightly routine.
Katrina Czyrba –
Great results
I noticed incredible results with this product. It will be part of my regiment for years to come. I will never go a day without it. NOW is a great brand to purchase from and the supplement is affordable.
Jason –
Good products
Very useful for me. Helps me a lot
Harry R Humphries –
Changed my life!!!
I’ve suffered from tinnitus due to tmjd for a few years now. It’s caused me difficulty to get to sleep and stay asleep. This magtein has changed my life! It helps me not only get to sleep but stay asleep. Magtein has replaced my muscle relaxer and melatonin! Also, I have been taking omeprazole for over 20 years, but no one told me Proton pump inhibitors depleted magnesium! If your taking omeprazole you need a magnesium supplement!!! I’ve only used this brand and it’s been great for me!!!
Bob –
I use this every day.
I take this magnesium Threonate for ocular migraines. Works extremely well. Research all the magnesium’s. NOW products were recommended by my physician. Very clean, no fillers.
Richard P –
Better for taking in the day
Mr K.K. –
Was initially impressed that this product seemed to work with other supplements to slightly boost my intuition, unfortunately that initially also came with quite severe headaches and blood pressure issues. I have since traced the side affects to either excess B12 supplements in my diet or excess total magnesium due to another form of magnesium that I was also taking at the same time (after discontinuing both I was able to gradually get used to this form of magnesium). Just keep in mind that if you have blood pressure issues / severe headaches shortly after taking this for a short time it may possibly be linked to this product / other dietary adjustments may be required.
IV –
Paid 43 euro/90 capsules and the product looks suspiciously low quality at first inspection. A lot of the content just spiled outside the capsule into the container.
ravi shankar –
There is no doubt that Magnesium L-threonate is the best form magnesium but it is bit costly than gluconate,but it is worth of buying. For better results need to take 4-5 capsules a day because elemental magnesium contain is only 144 mg and for adults more than 400 mg per day is required.
A –
It makes such a difference in memory and cognitive function.