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NERYL BUTYRATE

CAS 999-40-6
82

Safety score · 0–100

Good

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

About

Neryl Butyrate is a cosmetic ingredient. Exercise caution due to limited available safety data.

Neryl butyrate (CAS 999-40-6) is an ester of neral (a rose-scented monoterpene aldehyde) and butyric acid. It is listed in the IFRA Code of Practice and is not specifically restricted in EU Regulation 1223/2009 Annexes II or III. Naturally occurring in essential oils such as lemongrass and verbena, it has a long history of use in food and cosmetic flavour/fragrance applications. As a terpene derivative, it may require allergen declaration under EU Regulation 1223/2009 Annex III/138 if present above 100 ppm in leave-on products (0.01% threshold for fragrance allergens).

Skin benefits

  • Provides pleasant rose-like fragrance
  • Flavouring agent in oral care products

Known concerns

  • Fragrance allergen declaration required above threshold (0.01% in leave-on)
  • May oxidise over time producing潜在 skin sensitisers

References

EU

EU CosIng database

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

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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.