Sorbeth-30 Tetraoleate Good Emulsifier No known benefits Sorbeth-30 Tetraoleate at a glance Emulsifying agent and surfactant Used often in oil-based cleansers Ruled safe as used in cosmetics Typical usage in rinse-off products is 0.11-10.8% Sorbeth-30 Tetraoleate description Sorbeth-30 tetraoleate is the tetraester (four esters) of oleic and the polyethylene glycol (PEG) ether of the sugar ingredient sorbitol. It works as an emulsifying agent and surfactant in cosmetics, particularly in oil-based cleansers. Depending on the supplier, it may be plant- or animal-derived but is also available in synthetic form. Sorbeth-30 tetraoleate has been ruled safe as used in cosmetics by the independent Cosmetic Ingredient Review. Its typical usage in rinse-off products (which are most formulas it’s included in) is 0.11-10.8%. Related ingredients: Surfactant Oleic Acid Ester Sorbeth-230 Tetraoleate