Authorized Vendor for PHOSPHATIDYL SERINE NOW Phosphatidyl Serine with Ginkgo Biloba combines two powerful nutrients that work synergistically with one another. Phosphatidyl Serine is a naturally occurring phospholipid compound derived from soy lecithin that plays an essential role in cellular composition. Ginkgo Biloba is a popular herbal extract that has demonstrated powerful antioxidant activity in in vitro studies.*From the FDA's website: ""Consumption of phosphatidylserine may reduce the risk of dementia in the elderly. Very limited and preliminary scientific research suggests that phosphatidylserine may reduce the risk of dementia in the elderly. FDA concludes that there is little scientific evidence supporting this claim.""