Colophonium
Rosin; resin acids from Pinus species; colophony
Known contact allergen and sensitiser; rosin and its derivatives (abietic acid) are among the more common causes of contact allergic dermatitis in depilatory wax users; EU Regulation requires labelling as allergen above threshold; hydrogenation reduces but does not eliminate allergenicity.
Function & Common Use
Film Former / Binder / Adhesive / Viscosity Controlling
Film Formers
Depilatory waxes, nail adhesives, hair removal products, adhesive plasters, lip balms, mascara
Natural (plant-derived - pine resin)
Concentration Limits
None specified
None in general use; fragrance allergen disclosure required when above 0.01% in leave-on and 0.1% in rinse-off products per EU Regulation 1223/2009 as amended by Regulation 2023/1545
None specified
None specified
Format restriction: EU label disclosure required above threshold concentrations
Baby restriction: Yes - avoid in infant products due to sensitisation risk
Pregnancy: No specific restriction
IFRA: No (not governed by IFRA; allergen overlap in sensitisation mechanism)
Frequently Asked Questions
Is Colophonium safe to use in skincare?
Colophonium has a High concern rating. Known contact allergen and sensitiser; rosin and its derivatives (abietic acid) are among the more common causes of contact allergic dermatitis in depilatory wax users; EU Regulation requires labelling as allergen above threshold; hydrogenation reduces but does not eliminate allergenicity.
Is Colophonium allowed in India?
Colophonium is currently classified as "Permitted" under Indian cosmetics regulations. The maximum permitted concentration is None specified.
What is Colophonium used for in cosmetics?
Colophonium functions as: Film Former / Binder / Adhesive / Viscosity Controlling. It is commonly found in: Depilatory waxes, nail adhesives, hair removal products, adhesive plasters, lip balms, mascara.
Can Colophonium cause an allergic reaction?
Yes. Colophonium has an allergen flag (Yes - contact sensitiser; EU-recognised cosmetic allergen). If you have sensitive skin or known fragrance/contact allergies, patch-test products containing this ingredient before full use.
Is Colophonium safe for babies?
Colophonium has baby/child restrictions: Yes - avoid in infant products due to sensitisation risk. Avoid using products containing this ingredient on infants unless specifically formulated and labelled for baby use.
Regulatory Status
EU Annex: Annex III entry 47; also listed as EU fragrance allergen requiring label disclosure above threshold
Identifiers
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