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Perfluorononan-1-oic acid [1] and its sodium [2] and ammonium [3] salts

CAS 375-95-1 [1] / 21049-39-8 [2] / 4149-60-4 [3]
6

Safety score · 0–100

Avoid

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

PFNA — a perfluorinated "forever chemical" with severe persistence, bioaccumulation, and reproductive toxicity concerns. EU bans cosmetic use above 0.1%; should not appear in any cosmetic.

Skin benefits

  • No legitimate cosmetic benefit

Known concerns

  • Persistent organic pollutant (POP) per Stockholm Convention
  • Reproductive toxicant Category 1B
  • Very persistent and bioaccumulative (vPvB)
  • EU REACH SVHC and cosmetic restriction at >=0.1%
  • Suspected liver and immune toxicant

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, so always read the physical product label and consult a healthcare professional for personal concerns.