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l-cysteine powder,l-cysteine powder,China l-cysteine whitening Manufacturer

l-cysteine powder In cosmetics: used in the production of perm, sunscreen, perfume, hair nourishing, etc. This high-grade perm and cold perm with cysteine substituted for thioglycolic acid has the advantages of easy perm, easy to maintain hair style, and softness. The advantages of chaos, etc., l-cysteine powder can also prepare sunscreen and hair growth perfume;