Phosphatidylserine
Phosphatidylserine is a phospholipid naturally found in high concentrations in brain cell membranes, where it plays a critical role in cell signaling and membrane fluidity. It is commercially derived from soy or sunflower lecithin and has been extensively studied for its effects on cognitive function, stress response, and age-related mental decline.
Research Evidence
May improve sleep quality under stressful conditions
LimitedSupports exercise recovery by reducing muscle soreness markers
ModerateSupports memory and cognitive function in older adults
StrongMay improve attention and reduce impulsivity in children
ModerateBlunts cortisol response to physical and mental stress
StrongExpert Evidence
4 references from 1 expert
2025
2022
2021
Safety & Cautions
Side Effects
- Mild digestive discomfort at higher doses
- Insomnia when taken late in the day
- Nausea in sensitive individuals
Phosphatidylserine is generally well-tolerated at standard doses up to 300 mg daily. Those taking blood-thinning medications or anticholinergic drugs should consult a healthcare provider before use, as phosphatidylserine may interact with these medications.
Pairs Well With
Price Comparison
From $0.15/ct
D
Double WoodBest Value
4.5
•120 ct$0.15/ct
$17.81 total
N
Nutricost
4.5
•120 ct$0.20/ct
$23.95 total
N
NOW Foods
4.6
•60 ct$0.36/ct
$21.38 total
