Product name: Cosmetic Grade Silk Amino Acids Sericin Powder
English name: Silk sericin powder, Silk Fibroin Powder
Appearance :White fine powder
Active ingredient: Sericin

Test Method: HPLC, TLC
Specification: 90%

Sericin powder amino acids is made from pure silk elements including 18 kinds of amino acids among with L-alanine, L-serine and so on.

Sericin powder amino acids 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 "Silk 90". The product is white powder with pH value between 5 to 7 and positive ninhydrin reaction.