The Expert Panel assessed the safety of 28 alkyl phosphates and concluded that these ingredients are safe in the current practices of use and concentration when formulated to be nonirritating. The ingredients in the alkyl phosphate family share a common phosphate core structure, and vary by the identity of the alkyl chains attached therein. Most of the alkyl phosphates function as surfactants in cosmetic ingredients; however, the triesters function as plasticizers rather than surfactants. The Panel reviewed the available animal and clinical data to determine the safety of these ingredients.
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