← Back
3Medicinal

Phosphatidylserine

Also sold as PS

Age-related memory support with modest evidence.

3TrustedSupp Tier System™ · Tier 3Take as a defined course
Check before you startThis one has documented interactions with medication classes where the consequences are serious. If you take any prescription medicine, run it past a pharmacist before starting.

How long to take it

Twelve weeks to judge effect.

Who it's actually for

Older adults with age-related memory concerns.

Safe upper limit

Unverified
No formal limit; 100–300 mg daily in trials
Well tolerated. Mild blood-thinning effect.
No source attached yet. Treat this as a starting point, not a citation, until reviewed.

Interactions to know about

  • Blood thinners / antiplateletsWarfarin, apixaban, rivaroxaban, clopidogrel, aspirin
  • AntidepressantsSSRIs, SNRIs, MAOIs, tricyclics

Other supplements:

Run your full list through the interaction check.

Practical notes

  • Older trials used bovine-derived PS; modern products are soy or sunflower and less well studied.
  • Stop before surgery.