Sorbitan Stearate ●
TL;DR. This ingredient is a nonionic emulsifier and co-emulsifier, mainly helping oil and water phases stay blended in creams, lotions, balms, and makeup. It also adds body and a smoother skin feel to thicker formulas.
What does Sorbitan Stearate do in a cosmetic formula?
This ingredient is a nonionic emulsifier and co-emulsifier, mainly helping oil and water phases stay blended in creams, lotions, balms, and makeup. It also adds body and a smoother skin feel to thicker formulas.
Is Sorbitan Stearate clean?
From a clean-beauty perspective, it is generally well accepted because it has a low irritation profile and is not a common allergen. The main scrutiny is trace processing residues and the source of the fatty raw material, rather than the molecule itself.
Is Sorbitan Stearate sustainable?
This material is usually made from a sugar-derived backbone and a long-chain fatty acid, commonly from vegetable oils. It is considered readily biodegradable, with the main sustainability question being whether the fatty feedstock is responsibly sourced, especially when palm is involved.
Is Sorbitan Stearate COSMOS-approved?
It is permitted under COSMOS-natural and COSMOS-organic when it meets natural-origin and processing requirements. Its fit with Green Chemistry is strong when renewable feedstocks are used, since it is made by esterification and has favorable biodegradability.
How does Sorbitan Stearate work chemically?
The molecule is a partial ester formed from a dehydrated sugar alcohol and a C18 saturated fatty acid, giving it a low HLB value around 4.7 and making it especially useful for water-in-oil systems or as a co-emulsifier. Typical use levels are about 0.5% to 5%, and it is generally stable in anhydrous or mildly acidic to neutral emulsions, though strong acid or alkali conditions can promote ester hydrolysis.
Last updated 2026-05-13