Phosphatidylserine is a naturally occurring phospholipid found in high concentrations in the brain. It plays a crucial role in maintaining cell membrane integrity, especially in nerve cells, and supports key brain functions such as memory, learning, and concentration.

As a dietary supplement, phosphatidylserine is widely used to promote cognitive health, improve mental clarity, and reduce symptoms of age-related cognitive decline. It may also help manage stress by lowering cortisol levels and enhancing mood.

Phosphatidylserine is popular in nootropic formulas, brain health supplements, and sports nutrition for its potential to support mental performance, reaction time, and focus during both mental and physical stress.