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Every compound in the sci-wiki that affects melanocytes/melanin; the ones you can source are floated to the front, then the reference-only entries. Tap any for the full entry, mechanism, and outlets.
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Hydroquinone is an aromatic organic compound, a benzene-1,4-diol (para-dihydroxybenzene) belonging to the phenol family. In medicine and cosmetics it is the classic topical skin-lightening agent, used to fade melasma, age spots and other hyperpigmentation by curbing the skin's production of melanin. The same molecule also serves industrial roles as a photographic developer, an antioxidant and a polymerization inhibitor.
Hydroquinone + Octinoxate + Oxybenzone is a combined topical preparation that pairs the skin-lightening agent hydroquinone with two organic ultraviolet filters, octinoxate and oxybenzone. It is used to treat melasma and other facial hyperpigmentation, with hydroquinone fading existing pigment while the sunscreen filters shield the treated skin from the ultraviolet light that darkens it. The formula reflects the standard clinical principle that pigment-lightening therapy works best alongside daily photoprotection.