L‐Cysteine is an amino acid that works with vitamin C in preventing the skin’s production of melanin pigments. Since it has very high skin-whitening abilities, it is used in various anti-spot medicines and nutrition tablets.
L‐Cysteine’s Skin-Whitening Abilities
L‐Cysteine prevents the production of melanin. Therefore, even if your skin receives damage from UV rays, you won’t need to worry much about spots and freckles. L-cysteine can also wash your existing melanin pigments away with your dead skin cells, thus lightening the spots and freckles that you already have.
