Silk powder (silk fibrin powder) is a kind of macromolecular silk fibrin in powder form, which is made from the silk fibrin degummed under high pressure, requires special craft processing and smash through physical methods. Its molecular weight of is about 250000. It is tasteless, odorless, slightly soluble in water and insoluble in alcohol ether.

The silk powder is an excellent natural moisturizing factor because of the presence of hydrophilic gene in the structure of silk. This has certain preventive on skin protection. It will make the better sun-screening effect by using the compound of silk powder and sun-screening agent in sunscreen products.

Silk powder has excellent air permeability, users would feel particularly smooth after applying cosmetics containing silk powder.

 
Functions:

1. It is is a functionally prominent nutrient with higher nutritional value;

2. It can keep and adjust moisture, prevent skin from ultraviolet radiation, restrain splash generation, facilitate anti-aging for skin.

Application of Silk Fibroin Powder:

1. There are hydrophilic groups in the silk structure, so silk powder is an excellent natural humidity control factor. A thin layer of silk powder is attached to the skin surface, which can absorb or release water with changes in skin temperature and humidity. This has certain preventive effects on skin health care and prevention and treatment of various skin diseases caused by moisture or dryness.

2. The crystalline structure of the silk powder can reflect part of the ultraviolet rays, and the hollow formed by the spiral structure can absorb part of the ultraviolet rays. Therefore, the silk powder and the sunscreen agent are used in sunscreen products for better sunscreen effect.

3. Silk fibroin powder has a unique ability to trap oil, so it is more suitable for cosmetics of oily skin.

4. The structural characteristics of silk powder can help reduce reflected light. Used in cosmetics with mica powder as the matrix, it can reduce the reflected light and make it naturally exude realistic and soft colors. Compared with talc and titanium dioxide, Silk powder has excellent breathability, and silk powder-containing cosmetics feel smooth after use.