What it is
Sorbitan palmate belongs to the sorbitan ester family, formed by reacting the sugar alcohol sorbitol with palmitic acid. In formulations it acts as a low-HLB nonionic emulsifier, typically paired with a higher-HLB co-emulsifier such as a polysorbate to build stable creams and lotions. It also contributes a degree of skin conditioning and helps disperse pigments and oily UV filters evenly through the product.
Safety & warnings
Sorbitan esters are generally well tolerated and have a long record of use as cosmetic and food-grade emulsifiers, with low irritation and sensitization potential at normal use levels. As a fatty-acid ester it is not a recognized fragrance allergen.
Origin & sourcing
Synthesized by esterifying sorbitol, which is generally derived from plant starches such as corn, with palmitic acid sourced from vegetable or animal fats. The result is a nonionic ester widely used across cosmetic emulsions.
Questions everyone asks
What does sorbitan palmate do in a sunscreen?
It works as a nonionic emulsifier that keeps the oil and water phases blended into a stable cream or lotion and helps disperse oily UV filters and pigments evenly.
Is sorbitan palmate the same as polysorbate?
No. It is the plain sorbitan ester with a low HLB, while polysorbates are ethoxylated versions with higher water solubility; the two are often used together as an emulsifier pair.