Cosmetic Grade Sodium Polyglutamate PGA  

Sodium polyglutamate (γ-PGA) [Product Introduction] Sodium Polyglutamate (PGA) was first found in the high viscosity wiredrawing contained in natto foods. It is a amino acid anion polymer produced by microbial fermentation, it’s water-soluble, biodegradable and of high safety. Because it has excellent water solubility and is a natural moisturizing ingredient, it is now widely used in cosmetics & personal care. The basic structure of Sodium polyglutamate (PGA) consists of D- and L-glutamic acid monomers which are connected by amid linkages between α-amino and γ-carboxyl groups. Large number of carboxyl along the molecule chain of PGA can form hydrogen bonding in a molecule or between different molecules. Thus it has high water absorb-ability and moisture-retaining capability.  PGA can be divided into many different types, such as PGA-HMW (high molecular weight) (about 1000KDa), PGA-LMW (low molecular weight) (about 100KDa), and PGA-Oligo (olig…