A: basic information Cas no: 574-12-9 Part: silk Active ingredient: silk amino acids Appearance: white or slight grayish yellow p Grade:food garde, medicine grade, cosmetic grade Extract method: :solvent extraction Packaging: 1kg/one bag, or 5kg/one bag, innermost is seal bag, and the second layer is aluminum foil bag, final layer is the cardboard box, or net weight 25kgs/drum Certificate: iso B: product description Silk protein powder is made from pure silk elements including 18 kinds of amino acids among with l-alanine, l-serine and so on. Natural silk protein extract, silk protein powder is the water soluble mixing amino acid obtained after hydrolysis of silk fibroin. The average molecular weight is about 90 and the product is also called as â??silk 90â?�. The product is white powder with ph value between 5 to 7 and positive ninhydrin reaction. C: function 1.Natural silk protein extract, silk protein powder is is a functionally prominent nutrient with higher nutritional value; 2.Silk amino acids powder has the detoxication effects for some aromatics which can cause cancer; 3.Silk amino acids powder helps promoting the metabolism of alcohol in human body and protecting liver; 4.Silk amino acids powder can also repair and nurse the hair injured besides chemic through penetrating the interior of scathing hair squama; 5.Silk amino acids powder can keep and adjust moisture, prevent skin from ultraviolet radiation, restrain splash generation, facilitate anti-aging for skin.