Life Extension Neuro-Mag Magnesium L-Threonate
by Life Extension
"The brain magnesium — Magtein magnesium L-threonate that crosses the blood-brain barrier for cognitive enhancement and sleep"
Overview
Life Extension Neuro-Mag provides 2000mg of Magtein magnesium L-threonate (yielding 144mg elemental magnesium) — the only form of magnesium clinically shown to cross the blood-brain barrier and increase brain magnesium levels. Developed at MIT, magnesium L-threonate was shown in clinical trials to improve cognitive function, memory, and sleep quality by increasing synaptic density and NMDA receptor function. Other magnesium forms (oxide, citrate, glycinate) raise serum magnesium but don't significantly increase brain magnesium concentrations.
Key Ingredients
| Ingredient | Amount |
|---|---|
| Magtein Magnesium L-Threonate | 2000 mg (144 mg elemental Mg) |
Pros & Cons
What We Like
- Only magnesium that crosses blood-brain barrier
- Clinically proven cognitive benefits (MIT research)
- Improves memory and synaptic density
- Sleep quality enhancement
- 10,000+ Amazon reviews
What Could Be Better
- 3 capsules per serving
- Only 144mg elemental magnesium
- Premium price ($28-36)
- Need additional magnesium for body needs
Who Is This For?
Best For
- Cognitive enhancement
- Memory improvement
- Sleep quality (brain-mediated)
- Those wanting brain-specific magnesium
Not Ideal For
- General magnesium supplementation (low elemental Mg)
- Budget magnesium seekers
- Those wanting single-capsule dosing
Our Verdict
Life Extension Neuro-Mag is the brain-specific magnesium — the only form clinically proven to cross the blood-brain barrier. For cognitive enhancement and sleep, this is unmatched. Supplement additional glycinate or citrate for body magnesium needs.