Hexadecanol
What is Hexadecanol?
Hexadecanol, commonly known as cetyl alcohol, is a saturated fatty alcohol derived from coconut or palm kernel oil, used primarily as an emollient, emulsifier, and thickener in skincare formulations. It helps soften and smooth the skin by forming an occlusive barrier that reduces transepidermal water loss, while also stabilizing emulsions in creams and lotions. Despite its 'alcohol' name, it is non-drying and non-irritating, functioning more like a lipid than ethanol.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Emollient
Softens and smooths skin by filling in surface roughness and improving slip; can also help reduce moisture loss when paired with occlusives and film formers.
Emulsifying agent
Enables stable mixing of oil and water phases by forming an interfacial film, helping create lotions, creams, and cleansers with consistent texture.
Skin conditioning agent
Maintains skin softness, smoothness, and flexibility.
Viscosity controlling agent
Adjusts thickness to the desired level for stability and usability, improving dispensing, suspension, and texture across many formulation types.