Jarrow Formulas, Phosphatidyl Serine ( PS-100), 100 Mg, 60 SoftgelProduct Description Phosphatidyl Serine (PS) is a phospholipid nutrient that is vital for proper cellular function, particularly in the brain. It supports cognitive health by helping to maintain healthy brain cell membranes and promoting neurotransmitter function. This supplement is particularly beneficial for maintaining memory, concentration, and overall cognitive performance. Jarrow Formulas PS 100 provides a concentrated source of phosphatidyl