Jarrow Formulas PS100 Phosphatidylserine 100mg, Dietary Supplement for Brain Health and Cognitive Function Support, 120 Softgels, Up to a 40-120 Day Supply

Clinical trials typically use 100-300mg daily. Jarrow Formulas PS 100 delivers 100mg phosphatidylserine per softgel, which we classify as Therapeutic relative to that range.

See the "Also consider" section below for two alternatives. Choose based on form preference (Softgel vs alternatives), dose adequacy, and third-party testing.

Yes — Third-Party Tested. Third-party testing verifies ingredient identity and label accuracy.

Yes — Amazon Subscribe & Save is available for this product. Enrolling locks in a recurring delivery at a reduced per-unit price.

Jarrow Formulas PS 100 contains phosphatidylserine, which may interact with blood-thinning medications and cholinergic drugs. The 100mg dose can affect neurotransmitter balance. Consult your doctor if taking anticoagulants, antidepressants, or Alzheimer's medications (acetylcholinesterase inhibitors).

Phosphatidylserine has a strong safety record with studies running 6-12 months. Jarrow uses Cogni-PS, a soy-free branded ingredient with guaranteed potency. The FDA allows a qualified health claim for PS and cognitive decline risk reduction. Safe for long-term daily use.

Most users tolerate PS 100 well. The softgel format with sunflower oil carrier enhances absorption of this fat-soluble phospholipid. Occasional reports of mild GI discomfort or insomnia at higher doses (300mg+). Start with 100mg and increase gradually.

PS pairs well with omega-3 fish oil (both support brain cell membranes), B vitamins, and other cognitive supplements. The phospholipid form complements choline sources like alpha-GPC. Can be taken with most daily vitamins and minerals.

Take 1 softgel 1-3 times daily with meals containing fat for optimal absorption. The clinical dose is 300mg daily (3 softgels). Start with 100mg and increase as needed. The Cogni-PS branded ingredient ensures soy-free, consistent potency.

Cognitive benefits from phosphatidylserine typically emerge after 6-12 weeks of consistent daily use at 100-300mg. Memory and concentration improvements are gradual. Clinical studies typically run 12 weeks to demonstrate significant effects.