Sell silk powder

Description

Silk powder is a kind of silk protein with high molecular weight, water soluble. Silk Powder has the function of excellent natural humidity-control and caring for one's skin, preventing part of ultraviolet radiation, prevent and curing some skin disease result from all kinds of dampness and dryness. It has super effect used in prevent sunshine produce.
The silk powder possesses the unique ability of absorbing oil, therefore it is suitable for the cosmetics applied to the oily skin. The particle size is from 2um to **0um with various specifications. Our extra fine Silk Powder can more easily mixed with cosmetic than common ones with thinner particle size.    
·Quality Index：
 

Item	Index
Characteristic	Powder in white or grayish color, no terriblesmelling, freely water soluble
Fine Rate μm	2—**0
Total Nitrogen %	≥*4
PH Value	5—7.5
Loss on Drying %	≤6.5
Residue on Ignition %	≤2
Heavy Metal (as Pb), mg/kg	≤*0
Arsenicum (as As), mg/kg	≤2
Number of Aerobic Bacterial	≤**0
Other Pathogenis Bacteria	Can’ t be detected

Application characteristics:
1. Because of the hydrophilic gene in the structure of silk, silk protein powder is a fine natural moisture factor. Attaching to the surface of the skin with extremely thin layer of silk powder can control the water absorption or release, according to the changes in skin temperature and humidity. It has great effects in skin care, prevention and treatment for various types dermatosis caused by dry or moist skin.
2. Since the crystalline structure of silk powder can reflect some ultraviolet light and the space caused by its spiral shape can also absorb  some UV light, silk powder can be used in sunscreen products.
3. The silk powder possesses a unique ability of absorbing oil; therefore, it is suitable for the cosmetics applied to oily skin.
4. Because of the special structure of decreasing the reflective light, the silk powder can be applied into cosmetics based on mica powder to reflect the real & soft color naturally. Compared with talcum powder or titanium white powder, the silk powder has excellent character of air permeability so that it is suitable for make-ups, such as the facial powder or rouge etc.