Magnesium L-Threonate (Magtein) Supplement

$15.48 ~~$89.85~~ In stock

Category: Sleep

Magnesium is an essential mineral involved in hundreds of processes throughout the body. While there are many forms of magnesium available, Magnesium L-Threonate is unique because it is designed to support brain magnesium levels. This makes it a strong choice for those looking to support cognitive health, focus, and overall brain function.

Each 4-capsule serving provides 2,000 mg of Magtein® Magnesium L-Threonate, yielding 144 mg of elemental magnesium.

Soy-Free, Gluten-Free, Non-GMO

Customer Reviews (4.4 / 5 · 5 reviews)

Joseph ★★★★★ Sep 1, 2026

I’ve tried other magnesium forms that did nothing for sleep, but this one actually made a noticeable difference within the first week—I’m waking up less groggy and falling back asleep faster after middle-of-the-night wakeups. The capsules have no weird aftertaste or stomach upset either, which is a

Violet ★★★★★ Aug 23, 2026

I've tried other magnesium forms that just made me sleepy but this one actually crosses the blood-brain barrier and I notice a genuine difference in my nighttime rest. The capsules are easy to swallow and don't leave any weird aftertaste, which is a plus for me.

Violet ★★★★★ Jul 22, 2026

I was skeptical about magnesium supplements for sleep, but this L-Threonate form really made a difference in how quickly I drift off. The capsules are easy to swallow, and I definitely feel calmer within an hour of taking them.