NOW Foods Supplements, Magtein™ with patented form of Magnesium (Mg), Cognitive Support*, 90 Veg Capsules | ⭐ Flexiology.Store Recommended

Original price was: $47.99.Current price is: $29.95.

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Health Disclaimer: Always consult your doctor before using supplements. Results vary by individual.
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Description

Price: $47.99 - $29.95
(as of Oct 05, 2025 14:27:12 UTC – Details)


Take 3 NOW Magtein capsules daily in divided doses (take 1 capsule during the daytime, preferably in mid-afternoon and take 2 capsules one hour before sleep). Magnesium (Mg) is an essential mineral best known for its role in bone and nervous system function. Recent research has demonstrated that it is also critical for normal brain health and normal cognitive function by maintaining the density and stability of neuronal synapses. However, most forms of Mg are not easily absorbed into the nervous system. Magtein is a patented form of Mg that readily crosses the blood-brain barrier for utilization in the brain. Laboratory studies indicate that Magtein supports brain health and may facilitate learning and memory, as well as a relaxed mood. Magtein is a registered trademark of Magceutics, Inc. and is distributed exclusively by AIDP, Inc. Magtein is protected under US patents 8,178,118; 8,142,803; 8,163,301; and other pending patents.
Is Discontinued By Manufacturer ‏ : ‎ No
Product Dimensions ‏ : ‎ 2.5 x 2.5 x 4.44 inches; 0.02 ounces
Item model number ‏ : ‎ 2390
Date First Available ‏ : ‎ April 2, 2014
Manufacturer ‏ : ‎ NOW Sports – Nutrition and Wellness
ASIN ‏ : ‎ B00JEZQAFG
Best Sellers Rank: #2,070 in Health & Household (See Top 100 in Health & Household) #20 in Blended Vitamin & Mineral Supplements #289 in Sales & Deals
Customer Reviews: 4.6 4.6 out of 5 stars 6,268 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
2 grams of Magnesium L-Threonate for cognitive support*
A patented form of magnesium that readily crosses the blood-brain barrier for utilization in the brain*
Take 3 capsules daily in divided doses (take 1 capsule during the daytime, preferably in mid-afternoon and take 2 capsules one hour before sleep)
Supports brain health and may facilitate learning and memory, as well as a relaxed mood*
Made and quality tested in the USA with globally sourced ingredients*

Customers say

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.

🌿 Expert Tip: Selected by our Flexiology Experts for quality & value.

⚠️ Disclaimer: Information is for educational purposes and not a substitute for medical advice. Consult your physician before use. Flexiology.Store is not responsible for any adverse effects.

Reviews (13)

13 reviews for NOW Foods Supplements, Magtein™ with patented form of Magnesium (Mg), Cognitive Support*, 90 Veg Capsules

  1. 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.

  2. 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.

  3. 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.

  4. 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.

  5. 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.

  6. Shannon

    HUGE mental health benefit
    I’m honestly astonished by how much this helps my mental health. It is quite literally a life saver for me; I am so grateful for this product. I’ve struggled with mental health and tried various psych meds for years before deciding to try to find more natural solutions for my anxiety and depression, as I was tired of prescription med side effects. Therapy has never worked for me, as I seem to just have persistent generalized anxiety and depression, no matter how wonderful my life is at the time. I tried a lot of different vitamins/supplements, but this is the only one that has a noticeable effect for me. I started to do more research, and found out that a large portion of the population unknowingly has a magnesium deficiency, and that a lot of healthcare workers are unfortunately unaware that regular blood tests for magnesium are extremely unreliable.A lot of people swear by magnesium glycinate, but that one didn’t seem to make a difference for some reason (potentially because this is supposedly the only form of magnesium that crosses the blood brain barrier?) So if you’ve tried glycinate before and it didn’t help, give l-threonate a try! It’s like night and day for me, and I noticed a huge difference within a couple of days.I’ve been taking it for probably around 8-9 months now, I just take one or two per day as needed. Sometimes I skip a day, but if I accidentally skip 2-3 days, my mental health starts to deteriorate again pretty quickly. No side effects so far that I’ve noticed. I also feel like Now is a decently reliable, reputable, and safe brand, especially since it can sometimes be dangerous ordering supplements/vitamins online.

  7. 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!!!

  8. 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.

  9. Richard P

    Better for taking in the day

  10. 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.

  11. 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.

  12. 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.

  13. A

    It makes such a difference in memory and cognitive function.

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