← All Supplements

Phosphatidylserine (PS)

A phospholipid that's a key structural component of your brain cell membranes — supplementing it supports memory, focus, and stress resilience.

Benefits

  • +Supports memory and cognitive function — FDA-qualified health claim
  • +May improve focus and attention
  • +Helps modulate cortisol response to stress
  • +Important for healthy brain cell membrane integrity
  • +May support mood and reduce symptoms of cognitive decline

Dosage & Cost

Range100–400 mg/day
TimingMorning or split into two doses
Daily cost0.25–0.75

Soy-derived PS is the most studied and common. Sunflower-derived PS is available for those avoiding soy. The FDA allows a qualified health claim for PS and cognitive dysfunction — one of few supplements with this status.

Side Effects

  • !Very well tolerated
  • !Rare: mild digestive upset
  • !May interact with blood-thinning medications (affects platelet aggregation)
  • !Generally considered one of the safest brain supplements

Food Sources

  • Soy (soybeans and soy products are the richest source)
  • Eggs
  • Fish (especially herring)
  • Present in small amounts in many foods but not at effective therapeutic levels

Community

Popularity rankings

#— in Fatty Acid
#— overall

Stats accumulate as members log their stacks

take daily
cycle it
avg. stacks
Forum

Not in any public stacks yet.

This page is for informational purposes only. The information here has not been evaluated by the Food and Drug Administration (FDA). No supplement discussed on this page is intended to diagnose, treat, cure, or prevent any disease. Please consult your doctor or a qualified healthcare professional before taking any dietary supplement.