






🧠 Elevate your mind, stay sharp, and never miss a mental beat!
Magtein by Source Naturals delivers 667 mg of magnesium L-threonate per capsule, a patented form designed for superior brain absorption. With 180 capsules per bottle, this gluten-free, dairy-free, and preservative-free supplement supports cognitive health and mental clarity, trusted by over a thousand users with a 4.5-star rating.














| ASIN | B00AXTO30G |
| Age Range Description | 35年 |
| Amazon Bestseller | #30,853 in Health & Personal Care ( See Top 100 in Health & Personal Care ) #122 in Blended Vitamin & Mineral Supplements |
| Brand | ソースナチュラルズ(Source Naturals) |
| Brand Name | ソースナチュラルズ(Source Naturals) |
| Customer Reviews | 4.5 out of 5 stars 1,373 Your Review |
| Item Form | Capsule |
| Item Height | 1.6 inches |
| Item Weight | 0.1 Pounds |
| Manufacturer | Source Naturals |
| Number of Items | 1 |
| Primary Supplement Type | Magnesium |
| UPC | 021078024866 |
| Unit Count | 180 粒 |
香**子
脳の健康のために
毎日欠かさず飲んでいます。 安心感があります。 ありがとうございました。
お**る
脳に効いてると思う
メンタルの改善を目的にマグテインを購入しました。 目的の効果とは違いますが、不思議と漢字が書けるようになりました。もともと漢字を書くのが苦手で、読めるけど書けない、なんとなくは解るんだけど書けない、みたいな感じだったのですが、マグテインを飲むようになってから不思議と漢字が書けるようになって驚きました。脳に効いているんだと思います。
H**S
Magtein
2nd order came in and not too sure if the daily dosage is showing any results. Hopefully we'll find out in couple of more weeks.
シ**ン
DANGEROUS. ANXIETY & Heart Problems!!
I have been hospitalized 3 times in the past few weeks due to hyperventilation and extremely high anxiety. I thought it was caffeine and not enough exercise, so I stopped caffeine but was still having breathing issues and anxiety. I narrowed the extreme anxiety down to this supplement. I cut it out completely and anxiety is gone. MAGTEIN gives you anxiety and is terrible for good sleep. Research more into this and you will see it’s terrible. BUYER BEWARE.
Trustpilot
1 week ago
1 month ago