Sodium polyglutamate (PGA) is a water-soluble high molecule polymer produced by microbial fermentation. Structurally it is the glutamic acid linked by amide bonds. There are a large quantity of hydrogen bonds between and within the molecules of PGA, contributing to the excellent moisturizing capability of the material. Using PGA and sodium hyaluronate (HA) together can greatly increase the action time of HA, and bring smoother skin by decreasing the sticky feeling of HA.

Basic Information

INCI Name: Sodium Polyglutamate

CAS No.: 28829-38-1

Appearance: White to off-white powder or granules

Assay: ≥92%

Molecule Weight: PGA-HMW (High Molecular Weight): >700 kDa

PGA-LMW (Low Molecular Weight): 70 kDa - 150 kDa

PGA-Oligo: <10 kDa

Efficacy

Long-lasting moisturizing and whitening effects

Synergistic effects with HA

Increasing the NMF content