Sorbitan Oleate is an emulsifier used in skincare products, cleansers, moisturizers, and makeup. It is derived from oleic acid and sorbitol, and is considered a mild skin irritant but non-sensitizing. It helps water and oil to mix together and can also function as a wetting and dispersing agent.
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Sorbitan Oleate is considered a low hazard ingredient, although it does note it as a potential carcinogen because studies have shown cell mutation. The EWG has lesser concerns regarding organ system toxicity and irritation, due to animal studies that showed liver effects at high doses and skin irritation at moderate doses. Rare cases of skin irritation (severe acne problems, eczema, blackheads) after contact with the product have been reported.
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Sorbitan Oleate is derived from oleic acid (a source of omegas) and hexitol anhydrides derived from sorbitol (often used as a humectant).
Low hazard ingredient
Lesser concerns regarding organ system toxicity and irritation
Sorbitan Oleate is especially suited formulations containing vegetable oils and is considered a good co-emulsifier for lotions and other emulsions. It has the ability to extinguish foam and is used in emulsion explosives in the mining industry. Sorbitan Oleate is one of the Sorbitan Esters which are white to tan-colored solids. Sorbitan Esters are used in a variety of products including skin care products, skin cleansing products, moisturizers, eye makeup and other makeup. They function as surfactant-emulsifying agents. The Sorbitan esters are produced by reacting the polyol, sorbitol, with a fatty acids (stearic acid, lauric acid, oleic acid, palmitic acid). Both sobitol and the fatty acids are naturally occurring and are used in cosmetic products. The CIR Expert Panel evaluated scientific data and concluded that Sorbitan Oleate, and other Sorbitan Esters, were safe as a cosmetic ingredient under present conditions of concentration and use. The Joint FAO/WHO Expert Committee on Food Additives has established an Acceptable Daily Intake of 0-25 mg/kg body weight for the sum of Sorbitan esters of lauric, oleic, palmitic, and stearic acid. Sorbitan Oleate can also function as a wetting and dispersing agent helping insoluble particles such as color pigments or inorganic sunscreens (zinc/titanium dioxide) to disperse nice and even in liquids.
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