γ-PGA is long-lasting moisturazing and endogenous hydrating. PGA Na is a natural, multi-functional and biodegradable biopolymer produced from L-glutamic acid through a fermentation process with a Bacillus subtilis. It is a water-soluble homo-polyamide consisting of D-glutamic acid and L-glutamic acid monomers connected by amide linkages between α-amino and γ-carboxyl groups.
