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PHENYLPROPANE

CAS 103-65-1
65

Safety score · 0–100

Fine

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

About

Phenylpropane is a cosmetic ingredient used in product formulations. Exercise caution due to limited available safety data.

Phenylpropane (n-propylbenzene) is listed in CosIng and regulated under EU Annex III of Regulation EC 1223/2009 due to its classification as a skin sensitizer. It is a component of some natural essential oils and requires allergen declaration in the INCI list when present above 0.001% in leave-on products or 0.01% in rinse-off products. It is not banned but is subject to IFRA voluntary restrictions in addition to EU mandatory labeling.

Skin benefits

  • Used as a fragrance component in perfumed products
  • Part of essential oil compositions providing aromatic profile

Known concerns

  • Classified as a skin sensitizer — requires allergen labeling in the EU
  • EU Annex III listing — concentration and use restrictions apply
  • Present in some essential oils — variable concentration in natural extracts

References

EU

EU CosIng database

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

Related others

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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.