Silk peptide is a kind of water-soluble polypeptide substance by the degradation of silk fibroin protein, whose molecular weight is between 500 and 10000, which is white powder with good water-solubility, the ninhydrin reaction is positive. 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. Product Name  Silk peptide Appearance White powder specification 98% Grade Food Grade Particle size 100% pass 80 mesh Test Method HPLC MOQ 1KG Package 1Kg/Foil bag,25Kg/Drum Delivery Time 5-10 Working Days Shelf Time 2 year    1.Applied in cosmetic industry,silk protein powder is easy to permeate the derma layer of skin and get absorbed, nurturing skin as well. 2.Applied in food industry,silk protein powder is mainly used as the additive. 1. Silk protein powder is is a functionally prominent nutrient with higher nutritional value; 2.Silk protein powder helps promoting the metabolism of alcohol in human body and protecting liver; 3.Silk protein powder can also repair and nurse the hair injured besides chemic through penetrating the interior of scathing hair squama; 4.Silk protein powder can keep and adjust moisture, prevent skin from ultraviolet radiation, restrain splash generation, facilitate anti-aging for skin.