Vitamin C is necessary for the formation of antibody and collagen, tissue repair (including some redox effects), metabolism of phenylalanine, tyrosine and folic acid, utilization of iron and carbohydrate, synthesis of fat and protein, maintenance of immune function,
hydroxylation of 5-hydroxytryptamine, maintenance of vascular integrity, promotion of non heme iron absorption, etc. at the same time, vitamin C also has antioxidant function, Anti free radicals, inhibit the formation of tyrosinase, so as to achieve whitening, light spot effect.
