PGA is a water soluble, biodegradable, non-toxic biopolymer produced by microbial fermentation.

PGA is a sticky material first found in "natto", a fermented soybean.

PGA is an unusual anionic, naturally occurring homo polyamide that is made of D & L glutamic acid units connected by amide linkages between alpha amino & gamma carboxylic acid groups.

Gamma-poly-glutamic acid (gamma-PGA) is a natural occurring, multi-functional, and biodegradable biopolymer. It is produced through fermentation by Bacillus subtilis using glutamic acid. PGA is consists of glutamic acid monomers crosslinked between α-amino and γ-carboxyl groups, and the molecular weight of PGA is usually between 100~1000 kDa. It is water-soluble, edible and non-toxictowards human, and is environment friendly. It has broad applications in the fields of medicine, food, cosmetics, and water treatment. 
 

Function
 

Polyglutamic acid is widely used in skin care (Sunscreen, skin milk, cleaning cream, Essence, lipstick and so on) and hair care (Shampoo,
mousse, hair conditioner and so on) products.

Major functions in cosmetics include:
* Function-based long-lasting moisturizing that helps the skin resist dryness;
* Improvement of skin elasticity and smoothness;
* Inhibition of melanin;
* Maintenance of a healthy pH;
* Slow-release transport system that enables the skin to absorb all nutrients;

1.Active component for lasting moisturizing and resistance to dry conditions of human skin.

2.Increasing the elasticity of human skin and keeping it tight and smooth.

3.Inhibiting the formation of melanin remarkably.

4.Keeping pH balance of human skin.

5.Forming a slow-release delivery system and therefore improving the absorption capacity of nutrients in cosmetics.

6.Enhancing color fastness after hair dying.

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