Barrier support ingredient
7-Dehydrocholesterol
A naturally occurring sterol and the direct precursor to vitamin D3 (cholecalciferol) via UVB photolysis. Found in the skin's sebaceous secretions and epidermis. In skincare, applied topically as a barrier-supporting lipid and functional emollient; it behaves similarly to cholesterol in supporting lamellar body structure and skin-barrier integrity. Used in K-beauty formulas targeting compromised or sensitive skin.
Also known as: provitamin D3
emollientskin-conditioningbarrier-support
Benefits
- ✓Provitamin D3 — upon UVB exposure on the skin surface, converts to previtamin D3 and then vitamin D3 (cholecalciferol)
- ✓Functions similarly to cholesterol as a skin-barrier lipid, intercalating within the stratum corneum lamellar structure
- ✓Supports epidermal differentiation and barrier integrity analogous to cholesterol supplementation
No known watch-fors.
Compatibility
✓ Works well with
+ Ceramide NP+ Cholesterol+ Squalane
