Polyglutamate (Polyglutamic Acid, PGA) is a natural biopolymer derived from glutamic acid, produced through biotechnological fermentation processes. In cosmetics, it is a highly valued multifunctional active ingredient due to 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 Oligo (<10 kDa)

Very low molecular weight PGA (oligomer) exhibits greater bioavailability and interaction capacity with the deeper layers of the skin. It can contribute to deep hydration, skin comfort, and improvement in the appearance of fine lines, making it particularly interesting in advanced treatment formulations.

INCI

Sodium polyglutamate

Recommended usage level

0.1 – 1.0%

COSMOS approved

Yeah