Snapshot
- Overview
- Pine resin that helps mascara and lash products grip and shine.
- Category
- Tone/Texture
- Type
- Film Former
Rosin / Colophonium / Colophane
Rosin / Colophonium / Colophane is a solid resin obtained from pine trees, refined to create rosin used in coatings and cosmetics as a film-former or tackifier. It's chosen to improve adhesion, grip, and surface sheen in items like mascaras, hair styling aids, and depilatory waxes.
Like this ingredient?
Our take
Is Rosin / Colophonium / Colophane a Good Ingredient?
Poor, because despite being useful for film-forming and adhesion, it has a well-documented high sensitization and irritation risk, making it unsuitable for many sensitive or eczema-prone users. The functional benefit rarely outweighs that reactivity risk in leave-on skin products, which is why it doesn't clear even a Fair rating.
What it does
Skin Benefits
Improves grip and wear, helping products stay in place longer, and can provide a shiny, uniform finish on hair or lashes.
Where you'll find it
Uses in Skincare & Cosmetics
Used in lash formulas, brow gels, and hair pomades, and also found in peel-off masks and wax strips for depilation.
Before you use it
Safety
A known contact allergen that may trigger dermatitis, especially with prolonged or occlusive use such as waxes or adhesives. Those with sensitive, reactive, or damaged skin should avoid it or patch test and discontinue if redness or itching occurs.
Products with Rosin / Colophonium / Colophane
