In dictionaries:
Polysorbate 80
a nonionic surfactant and emulsifier often used in pharmaceuticals, foods, and cosmetics.
Polysorbate 20
(common commercial brand names include Kolliphor PS 20, Scattics, Alkest TW 20, Tween 20, and Kotilen-20) a polysorbate-type nonionic surfactant formed by the ethoxylation of sorbitan monolaurate.
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