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Glutathione in Cosmetics

Glutathione plays an important role in preventing oxidative damage to the skin.

In addition to its many recognized biological functions,
glutathione has also been associated with skin lightening ability.

The role of glutathione as a skin whitener was discovered as a side effect of large doses of glutathione.

Glutathione Mode of Action

Glutathione utilizes different mechanisms to exert its action as a skin whitening agent at various levels of melanogenesis. It inhibits melanin synthesis by means of stopping the neurotransmitter precursor L-DOPA's ability to interact with tyrosinase in the process of melanin production.

Glutathione inhibits the actual production as well as agglutination of melanin by interrupting the function of L-DOPA.

glutathione inhibits melanin formation by direct inactivation of the enzyme tyrosinase by binding and chelating copper within the enzyme's active site.

Glutathione's antioxidant property allows it to inhibit melanin synthesis by quenching of free radicals and peroxides that contribute to tyrosinase activation and melanin formation.

Its antioxidant property also protects the skin from UV radiation and other environmental as well as internal stressors that generate free radicals that cause skin damage and hyperpigmentation .

melanin formation consists of eumelanin (brown-black pigment) and pheomelanin ( yellow-red pigment) as either mixtures or co-polymers

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