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Resorcinol

Resorcinol · Hexylresorcinol · ButylresorcinolActive

Phenolic tyrosinase-inhibitor used in OTC and Rx brightening products. Less potent than hydroquinone, no rebound concern.

What it does

Resorcinol and its derivatives (hexylresorcinol, 4-butylresorcinol, thiamidol) inhibit tyrosinase to slow melanin production. Used at low concentrations in OTC brighteners and at higher concentrations in dermatology compounding. Slower than hydroquinone — visible benefit takes 8–12 weeks of consistent use — but without hydroquinone's rebound concern, so it can be used continuously rather than cycled. Generally well-tolerated; mild irritation possible in some users.

Also known as

hexylresorcinol, 4-butylresorcinol, thiamidol

Pairs worth knowing

Niacinamide (Vitamin B3) · works together ↗Alpha Arbutin · works together ↗Tranexamic Acid · works together ↗
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