3.Reduced Glutataione belongs to a small molecule peptide, reduced glutataione has antioxidant, detoxification, blocking melanin, skin cell regeneration whitening skin care function. The skin is the largest organ of the human body,the reduced glutataione contained in the skin is not enough to protect against ultraviolet radiation, exogenous supplementation of reduced glutataione has a certain antioxidant, deoxification, freckle removal, whitening and skin care.