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Cosmetics Ingredient Dictionary
alkyloamides. Identified on skin-care product labels as DEA (See diethanolamine), triethanolamine (TEA), and monoethanolamine (MEA), these are used primarily for their foaming ability in shampoos, but can also be used as thickening or binding agents. They can be skin irritants. In addition, alkyloamides contain a free amine that can combine with formaldehyde-releasing preservatives in cosmetics, and there is concern that they may form carcinogens.
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