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Nutricost

Magtein®, Magnesium L-Threonate, 120 Capsules (666 mg per Capsule)

4.8 · 509 reviews
5,018 ₽

Magnesium L-Threonate Dietary Supplement Nutricost® Quality Guaranteed Vegan Animal-Free Product Gluten-Free Product Non-GMO Product We believe supplements should be simple, transparent, and accessible. That’s why Nutricost focuses on quality ingredients, clear labeling, and prices that make sense — without unnecessary fillers or inflated costs.

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Magnesium L-Threonate Dietary Supplement Nutricost® Quality Guaranteed Vegan Animal-Free Product Gluten-Free Product Non-GMO Product We believe supplements should be simple, transparent, and accessible. That’s why Nutricost focuses on quality ingredients, clear labeling, and prices that make sense — without unnecessary fillers or inflated costs.

Customer reviews

5.0
verified purchase
Brain-Boosting

I started taking Nutricost Magtein to support cognitive function and focus, and it has exceeded my expectations. Unlike other magnesium supplements, Magtein is specifically formulated to cross the blood-brain barrier, providing targeted benefits for brain health. I’ve noticed a clear improvement in my mental clarity and memory since starting this supplement. The 666 mg per capsule dosage makes it easy to adjust to your needs, and the 120-capsule supply is great for maintaining a consistent regimen. Overall, I’m happy with the results and would recommend it to anyone seeking an effective way to enhance cognitive health.

8/31/2024
5.0
verified purchase
Good Choice for Magtein

This Nutricost Magnesium L-threonate (AKA Magtein) is my repeat choice in a magnesium supplement. I have decided after reading a number of online alternative health sources that it's important to supplement with magnesium. This form of magnesium is shown to cross the "blood brain barrier" and is supposed to support cognition. Magtein seems to me to be the supreme form of magnesium and is therefore more expensive than the other forms. I did a lot of dosage amount per capsule, quantity of capsules per bottle, and cost comparison amongst Magtein suppliers. I concluded that this Nutricost choice provided the best quality and bang-for-the-buck. I take it every night at bedtime and I think it benefits my sleep by helping me to drift off quickly, but I also take low dose Melatonin. I also like the fact that this supplement is manufactured in the U.S. It’s a repeat-buy for me!

2/4/2025
5.0
verified purchase

I’ve been using this product for a while now, and the quality is always top-notch. The ingredients are fresh, and I can really feel the difference in my health. The packaging was secure, and shipping was super fast. Definitely a great value for the price! Highly recommend to anyone looking for a reliable supplement. Will be ordering again!

3/4/2025
5.0
verified purchase
Nutricost Magtein

Absolutely love this product! I really like the Nutricost brand! The quality, the ingredients, the size of the jar all are perfect for my needs. I like that this product tastes good, is simple to take, and also seems to help with my sleep. I take it daily. The benefits of this product are super!

8/10/2024
5.0
verified purchase
Excellent product!

Magnesium L-threonate is considered one of the best-absorbed forms of magnesium. I take several supplements, so it's hard to judge the effects of this one alone, but I feel good overall and I'm happy with the quality. Magnesium is an important mineral, and if you decide to supplement it, I think it's worth choosing a highly bioavailable form. I will definitely order it again.

7/13/2026
5.0
verified purchase

quality is great. the ingredients are very effective. and for the price its on point. i always prefer this brand. the dosage is also on point as needed and i felt the difference from the benefits. there is only light smell but no taste which is great. the quantity and pill size is on point

4/25/2026
5.0
verified purchase

I love the effect, the ingredients is amazing ang the quality is outstanding. I also love the taste and the size of the capsules is just right. I hight recommend it for daily supplements.I love the effect, the ingredients is amazing ang the quality is outstanding. I also love the taste and the size of the capsules is just right. I hight recommend it for daily supplements.

3/31/2026
5.0
verified purchase

I love the effect, the ingredients is amazing ang the quality is outstanding. I also love the taste and the size of the capsules is just right. I hight recommend it for daily supplements.I love the effect, the ingredients is amazing ang the quality is outstanding. I also love the taste and the size of the capsules is just right. I hight recommend it for daily supplements.

3/31/2026
5.0
verified purchase
sleep well

I slept well at night and had vivid dreams. I liked it very much. Otherwise, I would have been thinking about everything between the two of them.

12/3/2025
5.0
verified purchase
Strong memories

Honestly, this supplement is solid and I definitely recommend it. It’s got good quality and it does the job well. Recommended to take it day time

11/14/2025