Xyience NGF provides Mucuna pruriens, Alpha-GPC, and Bacopa monniera, which collectively promotes the secretion of HGH. Mucuna is an herb that naturally contains L-Dopa, a peptide which has been shown to promote HGH secretion. Alpha-GPC is a soy-derived substance that, through its interactions with the neurotransmitter acetylcholine, also has been shown to promote HGH secretion. Finally, Bacopa is an herb which plays an indirect but supportive role in HGH secretion by helping to build new neurons (nerve/brain cells).