4-Butylresorcinol is a derivative of resorcinol widely used in cosmetic formulations for skin brightening and anti-pigmentation. Il est effectivement inhibits tyrosinase activity, reduces melanin oxidation, and promotes tyrosinase degradation, helping to improve uneven skin tone and enhance overall radiance.

Cet ingrédient actif est fourni sous forme de white to off-white powder et est soluble in both oil and alcohol, making it versatile for incorporation into creams, serums, lotions, and other oil- or alcohol-based formulations. With a recommended usage of 0.1–2.2%, it provides efficient brightening effects while maintaining formulation stability.