Next-Generation Moisture Retention for All-Day Hydrated, Supple Skin

Sodium Polyglutamate (γ-PGA) is a fermentation-derived poly-amino acid biopolymer that outperforms hyaluronic acid in moisture retention by a clinically measured 2–3× margin. Produced through Bacillus subtilis fermentation, it forms a breathable, hydration-locking film on the skin surface while simultaneously attracting environmental moisture.

The result is genuine 24-hour hydration — without heaviness, tackiness, or occlusion.

Why Sodium Polyglutamate

• Clinically superior moisture retention – retains 2–3× more moisture than equivalent concentrations of sodium hyaluronate
• Forms a breathable hydration film – reduces TEWL at the skin surface without blocking respiration
• 24-hour hydration – sustained moisture delivery confirmed in tewameter and corneometer studies
• Lightweight & invisible – non-tacky, non-greasy; compatible with all skin types and product formats
• Clean & globally compliant – vegan, fermentation-derived, COSMOS-certified sources available

Formulation Advantages

Sodium Polyglutamate is fully water-soluble and contributes a silky, smooth skin feel at 0.05–1% without affecting emulsion stability or formulation viscosity significantly. Compatible with standard humectants, electrolytes, and actives. Best combined with Sodium Hyaluronate (5 kDa HA) for a complementary deep-penetration + surface-lock hydration system.