Phosphatidylserine is OTC and made from Soy. It can reduce cortisol along with many other great health benefits such as increases metabolism throughout the brain, boosting your memory by restoring Acetylcholine a neurotransmitter essential to memory, restoring the brains supply of dopamine, which is why when I took it I had an over all sense of well being. Cause both by suppressing exercise induce cortisol and increased dopamine. It also has amino and fatty acids such as DHA, Omega 3 and 6. IMO I like to take from 300mg, 800mg or 1g a day.
