Let's Talk Health has created this formula to enhance brain function from simple memory loss to serious Alzheimer's disease. The ingredients in Brain Booster are all natural. They begin with Phosphatidyl Serine, the most important ingredient for building healthy new brain cells and stimulating the production of norepinephrine (the memory hormone). Next we find Acetyl L-carnitine to prevent the deterioration of the brain during stress and help the aging brain function better. Pregnenolone is used to improve and maintain mental capacity and memory. Next is Phosphatidyl choline, the most important neurotransmitter of memory, which improves the electrochemical activity in the nerve and brain cell membranes. The final ingredient is Huperzine A, for increased memory retention, energy and alertness.