1.Appearance:White or almost white crystal powder
2.Assay(HPLC) :Min 99% min
3.It is a lipophilic derivative of a water-soluble vitamin C,this product by inhibiting tyrosinase activity of Cu2 +, blocking the formation of melanin; prevent sun-induced skin inflammation; improve skin color, promote collagen production,increase skin elasticity.
5.Storage conditions:should store in cool, dry conditions in well sealed containers.
7.Shelf life: 24 months
8.Advantages:high content,use less dosage,thus saving your production cost;environmently friendly,stable,low price make you more competitive
10. About 10-year manufacturers,have exported to America,Togo,South African,India,France etc many countries.