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Sodium Polyglutamate

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Other Name: sodium γ-polyglutamate; γ-PGA; γ-Polyglutamic Acid
INCI Name: SODIUM POLYGLUTAMATE
Molecular Formula: L-Glu-(L-Glu)n-L-Glu
Molecular Weight: 5kDa-2000kDa
Appearance: White powder
Purity: ≥92%
CAS NO.: 28829-38-1
Package: 1KG, 5KG
Application: Toner, essence, lotion, cream, facial mask.
Availability:
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Sodium polyglutamate can well increase the NMF content in the skin, penetrate the stratum corneum, and make the skin more moisturized; improve skin elasticity and softness; promote the growth of fiber cells, improve skin health and improve skin texture; When used in combination with hyaluronic acid,it can improve the stickiness of hyaluronic acid, inhibit the activity of hyaluronidase in the skin, and increase the water-retaining and water-locking functions of the product.


As for the molecular chain of γ-PGA has a large number of free carboxyl, amino and carbonyl functional groups with hydration ability, among them, the ability of carboxyl is more obvious, and there are a large number of hydrogen bonds between the γ-PGA chains. γ-PGA has super water retention and water locking properties. It also chelates with metal ions, has good antibacterial properties, film-forming properties, strong smoothness, and sustained release capabilities, making it ideal for use in cosmetics to enhance and prolong moisturization. In addition, γ-PGA also has the synergistic antioxidant effect of vitamin C and the whitening effect of inhibiting skin tyrosinase activity (about 50% of kojic acid).

ITEM STANDARD RESULT
Content ≧92% 92.5%
Appearance White to off white granular or powder Qualified
PH 6.3～7.3 7.05
Viscosity1%,60rpm ≧90mPa.s(cP) 120
Loss on drying ≤8% 4.67%
Molecular wt(Da) ≧2000000 Qualified
Total Plate Count ≤100CFU/g 60
 Heavy metals(Pb) ≤10mg/kg Qualified


★What are the benefits of Sodium Polyglutamate?

It provides excellent hydration, improves skin moisture retention, and enhances skin smoothness.


★Is Sodium Polyglutamate better than Hyaluronic Acid?

It has stronger water retention capacity and can work synergistically with hyaluronic acid.


★What is Sodium Polyglutamate used for?

It is widely used in skincare products such as serums, creams, lotions, and masks.


★Is Sodium Polyglutamate water soluble?

Yes, it is fully water soluble and easy to use in cosmetic formulations.


★What is the main function in skincare?

It forms a moisturizing film and reduces transepidermal water loss (TEWL).


★Is Sodium Polyglutamate safe for skin?

Yes, it is gentle, non-irritating, and suitable for all skin types.


★What is the difference between PGA and Hyaluronic Acid?

PGA has stronger moisture retention and longer-lasting hydration performance.


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