Phosphatidylserine: Phosphatidylserine is a chemical that is required for many bodily functions, but especially in the brain. A study conducted to evaluate the functions and significance of this ingredient revealed that healthy nerve cell membranes and myelin depend on it. Phosphatidylserine, in particular, is thought to aid memory maintenance, memory creation and retrieval, learning, and communication. Another study examined the link between Alzheimer’s disease and phosphatidylserine. A 12-week dose of 100mg allegedly helped to improve several cognitive measures when compared to the placebo group, making it a promising candidate.