DEA-dodecyl benzenesulfonate, the diethanolamine salt of dodecylbenzene sulfonic acid. Diethanolamine (DEA) is a chemical compound, a water-soluble molecule obtained by the extraction of ethylene oxide with ammonia. DEA shows reactive capacity is an aminoalcohol as it combines the properties of alcohols and amines.

Safety
Some of the scientific literature warns of the possible danger of DEA, while a 1998 study by the National Toxicology Program (NTP) did not establish a link between DEA and cancer risk in humans.
The most relevant studies on this ingredient have been selected with a summary of their contents: https://www.tiiips.com/m/tiiips/home?action=listReviews&reviewID=9682&oID=1929

What it is used for and where it is used
It is used as a surfactant in cosmetics and a corrosion inhibitor in industrial applications.

Cosmetics
Surfactant - Cleansing agent. Cosmetic products used to cleanse the skin utilise the surface-active action that produces a lowering of the surface tension of the stratum corneum, facilitating the removal of dirt and impurities.
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CAS: 26545-53-9