Ingredient

Resorcinol

High risk

FunctionDye coupler — common allergen

What it is — Resorcinol is a synthetic aromatic compound used mainly as a dye coupler in permanent hair color, where it reacts with primary dyes to build shade.

What it does — It helps develop and set permanent color rather than conditioning skin or hair; its role is chemical color formation.

Typical use — Found in permanent hair-dye systems and some related color products, not in typical leave-on skincare.

Who it suits / good to know — It is a recognized skin irritant and a frequent hair-dye sensitizer, and DHALIORA notes evidence associated with thyroid/endocrine disruption. Those with sensitive skin or a history of dye reactions should be especially cautious, and it is barred from some "clean" certification programs.

Safety — DHALIORA grades it high risk. Follow product directions, avoid skin contact where possible, and always perform the recommended allergy/patch test before coloring. This is general information, not medical advice.

Why we grade it High: High risk — a skin irritant and frequent hair-dye sensitizer with evidence of thyroid/endocrine disruption; barred from EWG VERIFIED products.
Cross-reference

Found in these DHALIORA products

Found in 1 DHALIORA product

GDS Hair Dye Shampoo — Grey Coverage in 3 Minutes GDS Hair Dye Shampoo — Grey Coverage in 3 MinutesScreening 8.6
How grades are set — Risk reflects our own reading of publicly available safety data, an EWG-style reading shown at the worst-case grade we've assigned this ingredient across products. It isn't a third party's proprietary score, and it isn't medical advice. Always read the packaging and patch-test where indicated.
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