Polyglyceryl-5 Oleate

TL;DR. This ingredient is a nonionic emulsifier and co-surfactant, used to help oil and water mix and to improve mild cleansing or rinse-off feel. It can also help disperse oils, fragrances, and lipid-phase ingredients in natural-style formulas.

What does Polyglyceryl-5 Oleate do in a cosmetic formula?

This ingredient is a nonionic emulsifier and co-surfactant, used to help oil and water mix and to improve mild cleansing or rinse-off feel. It can also help disperse oils, fragrances, and lipid-phase ingredients in natural-style formulas.

Is Polyglyceryl-5 Oleate clean?

From a clean-beauty perspective, it is generally well tolerated and has little restricted-list friction. Sensitivity is uncommon, though formulas with higher surfactant loads can still feel drying or irritating depending on the full system.

Is Polyglyceryl-5 Oleate sustainable?

This material is commonly made from glycerin-derived and fatty-acid-derived feedstocks, which may be plant-based depending on supplier sourcing. It is expected to be readily biodegradable, with the main sustainability question usually tied to the origin and traceability of the fatty-acid supply chain.

Is Polyglyceryl-5 Oleate COSMOS-approved?

It is generally permitted under COSMOS natural and organic formulations when the feedstocks and processing aids meet the standard. Its profile fits Green Chemistry reasonably well because it can use renewable inputs, is biodegradable, and performs without persistent silicone or petrochemical film formers.

How does Polyglyceryl-5 Oleate work chemically?

The molecule is an amphiphilic ester with a multi-glycerin hydrophilic head and an unsaturated C18 fatty tail, giving it oil-water interfacial activity. Typical use is roughly 1 to 5% as an emulsifier or co-emulsifier, and it is most stable in mildly acidic to neutral systems while strong acid or alkali can gradually cleave ester bonds.

Last updated 2026-05-13