What it is
Polyglyceryl-2 oleate is a nonionic ester formed from polyglycerin-2 (diglycerol) and oleic acid, a fatty acid. It works as a gentle emulsifier and co-emulsifier, helping combine oil and water and stabilize the emulsion, and it contributes emollient, conditioning properties. Polyglyceryl esters are often chosen for mild, sulfate-free and PEG-free formulas.
Safety & warnings
Polyglyceryl esters such as polyglyceryl-2 oleate are generally regarded as mild and well tolerated. Because it is based on oleic acid, very rich formulations could feel heavy on skin prone to congestion, but as an emulsifier used at modest levels it is not commonly flagged as problematic.
Origin & sourcing
Made by esterifying polyglycerin with oleic acid; the oleic acid is typically of vegetable origin, so it is often described as plant-derived.
Questions everyone asks
What does polyglyceryl-2 oleate do?
It is a nonionic emulsifier and emollient that helps blend the oil and water phases of a sunscreen while conditioning the skin.
Is polyglyceryl-2 oleate plant-derived?
It is typically made from vegetable-sourced oleic acid combined with polyglycerin, so it is often described as plant-derived.