7-Dehydrocholesterol

7-Dehydrocholesterol is a cholesterol-related sterol, oil-soluble and photoactive as a provitamin D3 precursor. Cosmetics use it to add emolliency and lipidic texture, but because it oxidizes easily, stability takes careful handling.
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Ingredient Snapshot

Overview
A cholesterol-like fat that softens rough, dry patches of skin.
Category
Skin Conditioning, Barrier Support
Type
Emollient

Ingredient Ratings

Overall Rating

Fair

Comedogenic Risk

None

Skin Benefits

Softens rough patches and helps skin feel cushioned by supplementing surface lipids. May improve comfort on dry areas, though its stability and sensitivity considerations limit broad use.

Uses In Skincare & Cosmetics

Found in rich creams and balm-style moisturizers to lend a plush, buttery finish. Sometimes included in night treatments or ointment-like formulas within opaque packaging to protect from light.

Comedogenic Rating

This ingredient is not typically evaluated for comedogenicity, and no standardized rating is available.

Safety

Prone to oxidation; use in well‑stabilized, opaque packaging. Not known as a photosensitizer, but avoid applying to broken or highly irritated skin and discontinue if irritation occurs.

Is 7-Dehydrocholesterol a Good Ingredient?

Rated Fair, as it can enrich lipid feel and support barrier softness, but its photoactivity and oxidative instability warrant careful formulation (e.g., antioxidants, light‑protected packaging). It may irritate some users if oxidized.

Products with 7-Dehydrocholesterol

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