Polysorbate 20 is used in cosmetics and skin care products as a surfactant, emulsifier, and fragrance ingredient. It is derived from Lauric Acid and is also a chemical mixture of sorbitol ethylene oxide, according to Wikipedia. It is sometimes derived from fruits and berries as well, leading to its fragrant properties. Polysorbate 20 can serve as a dispersing agent and mix oil and water, work as a fragrance solubilizer and stabilizer, act as a lubricator, and have a soothing effect on the skin (NatureBath.com).
Polysorbate 20 is FDA and CIR approved.
Safety Measures/Side Effects:
The Cosmetics Database rates Polysorbate 20 as a low hazard ingredient, noting developmental and reproductive toxicity as concerns, but finding these results only in animals after high doses were administered. Lesser concerns regarding this ingredient are endocrine disruption, organ toxicity, and irritation, and one or more animal studies show skin irritation at moderate doses.