Phosphatidyl Serine
Phosphotidyl serine (PS) is a type of phospholipid that is needed by every body cell, and is especially abundant in nerve cells.
It is crucial for the manintenance of healthy cell membranes. Although the brain could produce enough PS, the production declines as we age, which can result in deficiency. Research has shown that supplementation of PS (most commonly derived from soybean) could help reduce symptoms of depression and Alzheirmer's disease, and to enhance memory and learning abilities.