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Film Former

NITROCELLULOSE

CAS 9004-70-0 Updated
60

Safety score · 0–100

Fine

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

About

The backbone film-former of classic nail polish — cotton cellulose treated with nitric acid. Dries into the glossy, hard finish on nails.

Function

FILM FORMINGDISPERSING NON-SURFACTANT

Skin benefits

  • Key film former in nail polish
  • Dries into a hard glossy film
  • Long cosmetic history
  • Not a skin penetrant

Known concerns

  • Highly flammable in pure form
  • Does not biodegrade readily
  • May cause nail plate dehydration
  • Trace solvents may irritate

References

EU

EU CosIng database

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

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Check your shelf

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