What it is
A magnesium salt of L-threonic acid, marketed as a brain-penetrant form of magnesium. Available as oral capsules and powders.
How it works
Preclinical rodent studies indicate that the threonate form raises cerebrospinal magnesium more effectively than other salts, with downstream effects on NMDA receptor signaling and synaptic plasticity.
Where it's used
Used as a dietary supplement marketed for cognitive and sleep support. Studied in small clinical trials for cognitive endpoints.
FDA-approved use
Regulated as a dietary supplement.
Tracking it
Magnesium L-Threonate is oral, which makes consistency the whole game — a simple daily check-off with a reminder beats memory every time.
Source
Public reference
Not medical advice. This page is an educational summary compiled from public
sources for people who log what they take. It is not a recommendation to use
Magnesium L-Threonate, a dosing guide, or a substitute for a clinician.
How we source →
Last reviewed 2026-06-11