Stearyl Alcohol
AKA “1-OCTADECANOL, Octadecan-1-ol, 112-92-5, 1-Hydroxyoctadecane, Octadecyl alcohol, n-Octadecanol, Stearol, n-Octadecyl alcohol, n-1-Octadecanol”
Fatty Acid
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Ingredient Facts
Stearyl alcohol
AKA: 1-OCTADECANOL, Octadecan-1-ol, 112-92-5, 1-Hydroxyoctadecane, Octadecyl alcohol, N-Octadecanol, Stearol, N-Octadecyl alcohol, N-1-Octadecanol
Fatty Acid · Emollient · EWG: 1
Synthetic
Emollient
Emulsifier
Plant Oil
Fatty Acid
Clean
Octadecan-1-ol is a long-chain primary fatty alcohol consisting of a hydroxy function at C-1 of an unbranched saturated chain of 18 carbon atoms. It has a role as a plant metabolite, a human metabolite and an algal metabolite. It is an octadecanol and a long-chain primary fatty alcohol.
Solubility Soluble in alcohol, ether, benzene, acetone
Formula
C18H38O
Mol. Weight
270.50
CAS #
112-92-5
Form
Liquid
State
Dry Powder; Liquid; Other Solid; Pellets or Large Crystals, Liquid, Other Solid; NKRA; Pellets or Large Crystals, Other Solid
See origin →
Functions
Emollient
Fills in the tiny cracks between skin cells to make everything feel smooth and soft. The "silky finish" ingredient.
Emulsifying
Forces oil and water to stay mixed instead of separating into layers. The unsung hero holding your lotion together.
Emulsion Stabilising
Opacifying
Refatting
Traditional Use
A long-chain fatty alcohol developed synthetically in the 20th century, though similar compounds occur naturally in plant waxes and animal fats. Used in cosmetics as an emollient, thickener, and opacifying agent.
Skin Types
●all-skin-types
Best For
Dryness
Pregnancy & Breastfeeding Safe
Yes
Anti-aging Dream Duo • SPF 50 + Retinol
Odacité
Anti Aging Eye & Sun Defense Duo
Odacité
Bioactive Renew Supreme Cream • Edelweiss Extrême® • Peptides + Carnosine
Odacité
Body Lotion
Acure
Clean-ical Formulations AM + PM Serum Duo
Odacité
Day & Night Eye Care Duo
Odacité
Edelweiss Extrême® • Repair + Restore Set
Odacité
Edelweiss Extrême® Skin Barrier Set
Odacité
Jump Start Smoothing Primer
Exa Beauty
[Travel Size] Hydra-Restore Cream Cleanser (20mL)
Grown Alchemist
Winter Renewal Ritual
Odacité
Sunless Tan Anti-Aging Daily Face Moisturizer
COOLA
Power Duo
Grown Alchemist
Regenerating Hand Cream 40ml.
Grown Alchemist
Serum For Days! Trio
Indie Lee
Advanced Regenerating Eye Cream (15ml)
Grown Alchemist
Hydra-Restore Day Cream
Credo Beauty
Polishing Exfoliator
Credo Beauty
Regenerating Night Cream
Credo Beauty
I-Waken Resurfacing Mask
Indie Lee
Vitamin C Serum
Indie Lee
The Body Wash | Multi-Oil
Credo Beauty
Superkind Calming Crème & Bio-Shield Face Oil
Tata Harper Skincare
Superkind Calming Crème
Tata Harper Skincare
Soothing Hand Cream (65mL)
Grown Alchemist
SPF 50 Color Balm Duo
Odacité
SPF 50 Tinted Sunscreen & Color Balm Duo
Odacité
Sun Damage Defense Duo • SPF 50 + Vitamin C
Odacité
Sun Defense Performance Duo • SPF 50 + Super Serum
Odacité
Take Your Vitamins Duo
Indie Lee
turmeric tonic
Cocokind
Allergic contact dermatitis caused by wet wipes containing steareth-10: Is stearyl alcohol to blame?
Aerts O, Naessens T, Dandelooy J, Leysen J, Lambert J et al.
Contact dermatitis, 2017
Incidence of human skin sensitization to isostearyl alcohol in two separate groups of panelists.
Aust LB, Maibach HI
Contact dermatitis, 1980
Final Report on the Safety Assessment of Cetearyl Alcohol, Cetyl Alcohol, Isostearyl Alcohol, Myristyl Alcohol, and Behenyl Alcohol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Final Report on the Safety Assessment of Stearyl Alcohol, Oleyl Alcohol, and Octyl Dodecanol
Cosmetic Ingredient Review (CIR) Expert Panel
International Journal of Toxicology
Isostearyl Alcohol
European Commission
EU Cosmetic Ingredient Database (CosIng)
Isostearyl Alcohol
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Stearyl Alcohol
Environmental Working Group (EWG)
EWG Skin Deep Cosmetics Database
Verified Jun 2026
Data: PubChem · CosIng · EWG · CIR