Alpha GPC (L-Alpha Glucerylphosphorylcholine, alphaglycerylphosphorylcholine) occurs naturally in the brain and milk. It is a chemical compound (a derivative of choline and its provider in the body) providing a precursor for the synthesis of acetylcholine, which is a neurotransmitter. Probably it has an impact on the secretion of the growth hormone that allows the intensification of tissue regeneration and it is improving the general condition and forming of proper body building.
The medicine uses it in the neurological treatments (stress, depression). In the sports supplementation is rarely used. It is a part of the supplements supporting a night renewal process.