RESORCINOL
RESORCINOL is the label name for resorcinol. It is an aromatic compound also called benzene-1,3-diol: the placement of two hydroxyl groups on the ring is what defines this substance. It is a chemically defined ingredient, not a plant extract or a fragrance blend.
RESORCINOL: what it is
RESORCINOL is the label name for resorcinol. It is an aromatic compound also called benzene-1,3-diol: the placement of two hydroxyl groups on the ring is what defines this substance. It is a chemically defined ingredient, not a plant extract or a fragrance blend.
That arrangement distinguishes resorcinol from similarly named dihydroxybenzenes such as catechol and hydroquinone. The distinction matters because close-sounding names can identify different substances; on an ingredient list, RESORCINOL specifically identifies the compound used, among other purposes, in hair-colouring products.
RESORCINOL: what it does in cosmetics
In oxidative hair dyes, RESORCINOL is a hair-colouring substance. In practical terms, it is part of the product mixed and applied to change the colour of the hair; it is not an active intended to treat the scalp, acne, dark spots or wrinkles. Its antioxidant classification does not turn the ingredient into a promise of anti-ageing effects on skin.
For someone choosing a hair dye, the useful point is that its use is tied to the colouring process, with its own mixing and rinsing directions. European legislation sets conditions for that use, so neither the result nor tolerance should be inferred from the ingredient name alone or from studies performed in other settings.
RESORCINOL: conditions and care
In oxidative colouring products, the concentration after mixing and applied to hair or eyelashes must not exceed 1.25%. Products intended for eyelashes are for professional use only. Warnings include following directions, not using on people under 16, and not colouring hair when the scalp is irritated or damaged.
Restrictions and conditions of use
Products containing this ingredient
See which products include it and the name used in each composition.
