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Film Former

SHELLAC

CAS 9000-59-3
80

Safety score · 0–100

Good

Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.

A natural resin secreted by lac insects — used as a glossy film-former in nail polishes, hairsprays and mascara. Long history of safe topical use; contact allergy is occasional and well-characterised.

Skin benefits

  • Natural glossy film former
  • Used in nail polish, hairsprays and mascara
  • Resin source — biodegradable

Known concerns

  • Possible contact allergy in pre-disposed users
  • Animal-derived (lac insects) — not vegan
  • Solvent residues if not well purified

References

EU

EU CosIng database

European Commission cosmetic ingredient registry: regulatory status, restrictions, authorised functions.

Related film formers

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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve, so always read the physical product label and consult a healthcare professional for personal concerns.