Jarrow PS100 100mg, Brain Health & Cognitive Function Support…

Our verdict

Jarrow PS100 100mg, Brain Health & Cognitive Function Support… works out to $0.55 per serving of phosphatidylserine, at 100mg per serving in capsule form. That puts it around the median of the 31 phosphatidylserine products we can price per dose, where the typical serving costs $0.35, a Value Index of 0.6 where the median product is 1.0. One container lasts 120 days at the label dose of 1 serving a day, about $16.50 a month. We could not verify a third-party certification for Jarrow Formulas in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.