Polyglutamate (Polyglutamic Acid, PGA) is a natural biopolymer derived from glutamic acid, produced through biotechnological fermentation processes. It is a multifunctional active ingredient highly valued for its exceptional moisturizing, film-forming, and skin-conditioning properties.

PGA has a polymeric structure that allows it to form a hydrophilic film on the skin's surface, reducing transepidermal water loss (TEWL) and providing long-lasting hydration. Its water-retention capacity is superior to that of other traditional humectants, making it a key ingredient in advanced moisturizing formulations and anti-aging products.

PGA High Molecular Weight (>700 kDa)

High molecular weight PGA acts primarily on the skin's surface, forming a continuous protective film. It provides an immediate moisturizing effect, improves smoothness, and imparts a silky feel. It is ideal for formulations where a barrier effect, skin protection, and sensory enhancement are desired.

INCI

Sodium polyglutamate

Recommended usage level

0.1 – 1.0%

COSMOS approved

Yeah