China H&Z® L-cystine is a nutritional supplement, can be used in medicine, cosmetics, food additives and so on.Used for breast-feeding milk powder.Non - essential amino acids.It is essential to the formation of skin and hair and can facilitate surgery and trauma treatment.Stimulates the hematopoietic function, promotes the white blood cell generation.It can promote the oxidation and reduction of cells in the body. It can also be used as an additive in cosmetics to promote wound healing, prevent skin allergies and treat eczema.