What it is
A phospholipid component of cell membranes. Available as oral softgels and capsules, typically sourced from soy or sunflower lecithin.
How it works
Incorporated into neuronal membranes, where it influences membrane fluidity and signal transduction. Clinical studies report modest effects on stress cortisol response.
Where it's used
Used as a dietary supplement marketed for cognitive function and cortisol modulation in athletic contexts.
FDA-approved use
Regulated as a dietary supplement.
Tracking it
Phosphatidylserine 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
Phosphatidylserine, a dosing guide, or a substitute for a clinician.
How we source →
Last reviewed 2026-06-11