1.Hyaluronic Acid 2.White powder 3.Food grade,comestic grade, Injection grade 4.Various molecular weight available. CAS No. : 9004-61-9assay: ≥98%Hyaluronic Acid 1. White powder 2. Food grade,comestic grade, Injection grade 3. Various molecular weight available.Various molecular weight availableHA is a straight chain macromolecular mucopolysaccharide composed of repeat disaccharide units of ...