China Silk Fibroin Powder of Cosmetics Grade Silk Powder

Product Name:

Silk Fibroin Powder

Characters:

White or slight grayish yellow powders

Identify:

Ninhydrin reaction is positive

Total Nitrogen:

≥14.5%

Drying Shrinkage:

≤5%

PH Value:

4.5.0-6.5

Average Molecular Weight:

500-30000Da

Shelf life:

Stable for 36 months at room temperature with proper storage and handling

Packing:

25kg/drum or customized

Silk fibroin powder is widely used in skin care, hair care
1. Silk Fibroin Powder is an excellent natural moisturizing factor because of the presence of hydrophilic gene in the structure of silk. It can attach a very thin silk powder layer to the surface of skin, which can absorb or release water with the change of the temperature and humidity of skin

2.Silk Fibroin Powder crystalline structure of silk powder can reflect part of ultraviolet ray, and the hollows formed by the spiral structure can again absorb part of ultraviolet ray, so it will make the better sun-screening effect by using the compound of silk powder and sun-screening agent in sunscreen products

3.Silk Fibroin Powder has a unique ability of keeping the oil, which makes it more suitable to be used in cosmetics for oily skin