Alpha-GPC
Alpha-glycerylphosphorylcholine is the most bioavailable form of choline, and also has some mild nootropic effects. It improves performance in both active and conditioning tasks in both young and old mice by increasing production of inositol phosphate, as well as increasing protein kinase C activity (an effect of other nootropics, such as oxiracetam), acetylcholine release, and nerve growth factor. It has been effectively used to treat Alzheimer's and increase recovery from stroke, and it also increases GH in both young and old humans.
