... 3,EINECS No.: 232-678-0 4,Prompt delivery specification of product:Product:Hyaluronic acid Appearance:White powderName: Hyaluronic acidCAS ... grade. Ph:5.5~7.5Appearance: white powderitems of products : ItemsStandardDescriptionWhite or light-white granule or powder,soluble ... and storagePreserve in tight,light-resistant containersExpriy dateTwo yearsfunction of product :1,it can be increase the purity ...