Polyglutamic Acid (PGA)

Polyglutamic Acid PGA (Polyglutamic Acid) is a high purity, anionic biopolymer of fermentation origin, extensively utilized in advanced hydration, layered moisture, and serum skin care formulations as a complementary humectant and film former, engineered to deliver superior water-binding capacity relative to hyaluronic acid, create a smooth and flexible moisture-retention film on the skin surface, pair synergistically with sodium hyaluronate for layered hydration, and optimize multi-level moisture-retention formulation performance.