| Brand Name | PromaCare L-PGA |
| CAS No. | 28829-38-1 |
| Product Name | Sodium polyglutamate |
| Chemical Structure |  |
| Appearance | White to off-white powder |
| Molecular weight | 100000Da max |
| Solubility | Water soluble |
| Application | Toner; Moisture lotion; Serums; Mask; Facial cleanser |
| Package | 1kg net per carton |
| Shelf life | 2 years |
| Storage | Keep container tightly closed and in a cool place. Keep away from heat. |
| Dosage | 1‰-1% |
Application
First recognized in Japanese food “Natto”, gamma-polyglutamic acid is a natural multifunctional biopolymer produced with Bacillus Subtilis by fermentation. PromaCare-PGA is a water soluble homo-polyamide. It consists of D-and L-glutamic acid monomers which are connected by amide linkages between α－amino and y-carboxyl groups. Freda has two series of cosmetics grade PromaCare-PGA products – the high molecule PromaCare H- PGA (700-1000 k Da) and the low molecule PromaCare L- PGA (70-100 k Da).
Large number of carboxyl groups along the molecule chain of PromaCare-PGA can form hydrogen bonding in a molecule or between different molecules. Thus it has high water absorbability and moisture-retaining capability. Thanks to its unique properties, PromaCare-PGA can be used as thickener, filmogen, humcctant, retarder, cosolvent, binder and anti-freezer, therefore the application prospect of PromaCare-PGA is promising.
With strong moisturizing ability, the side chain of PromaCare PGA can enhance the moisturizing capability of skin without breaking moisture balance of skin. When integrated into skin-care products, PromaCare-PGA can trengthen the moisturizing ability of skin and prevent skin from drying.
Hyaluronic Acid (PromaCare-SH) is a component of skin structure, which can keep the skin moisturizer and elasticity. But it is hydrolyzed quickly by hyaluronidase in skin.
PromaCare-PGA can maintain and increase the content of PromaCare-SH. PromaCare-PGA inhibits the activity of hyaluronidase effectively and improves the stability of PromaCare-SH. PromaCare L-PGA especially has better effect on inhibiting of hyaluronidase in skin. The content of PromaCare-SH in the skin increases remarkable along with the adding of PromaCare L-PGA. PromaCare-PGA and PromaCare-SH synergy improves the moisture, elasticity and appearance of skin.
