Emollient
DIHYDROCHOLESTERYL NONANOATE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A cholesterol nonanoate ester — a rich, skin-compatible emollient modeled on the lipids that make up the skin barrier.
Dihydrocholesteryl Nonanoate (CAS 15010-09-0) is the nonanoic-acid (pelargonic acid) ester of dihydrocholesterol (cholestanol). Structurally it is a cholesterol-type sterol ester similar to naturally occurring skin-barrier lipids, which gives it good skin compatibility and a substantive, conditioning feel. It is used as an emollient in creams, balms, and lipsticks. Sterol esters of this class have excellent oxidative stability. Toxicology data specific to this ester are limited, but the broader cholesteryl-ester family has been reviewed by CIR with no concerns at cosmetic use levels. Sourcing varies — animal (lanolin-derived cholesterol) or synthetic/phytosterol-derived — which matters for vegan formulation.
Skin benefits
- Rich, barrier-mimetic emollient
- Smooth, occlusive finish
- Good oxidative stability
- Compatible with sensitive skin
Known concerns
- Potential animal origin — vegan status depends on supplier
- Heavy, occlusive — not ideal for acneic skin
- Sparse standalone safety literature
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related emollients
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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.