Skin lipid / sterol
7-DEHYDROCHOLESTEROL
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
A natural skin sterol and vitamin D precursor used in barrier-supporting skincare. It is biocompatible but its photochemistry on skin warrants thoughtful formulation and packaging.
Skin benefits
- A natural precursor of vitamin D found in skin
- Supports skin barrier lipid composition
- Used in some formulations targeting barrier repair and dryness
- Biocompatible with skin's native sterol chemistry
Known concerns
- UV exposure converts it to pre-vitamin D and other photoproducts whose long-term topical implications are not fully characterized
- Limited dedicated SCCS or CIR cosmetic review
- Stability and oxidation can yield reactive sterol derivatives
References
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, so always read the physical product label and consult a healthcare professional for personal concerns.