Cocamide DEA, or cocamide diethanolamine, is a diethanolamide made by reacting the mixture of fatty acids from coconut oils with diethanolamine.

See cocamide for the discussion of the lengths of carbon chains in the molecules in the mixture.

The chemical formula of individual components is CH3(CH2)nC(=O)N(CH2CH2OH)2, where n typically ranges from 8 to 18.

The International Agency for Research on Cancer (IARC) lists coconut oil diethanolamine condensate (cocamide DEA) as an IARC Group 2B carcinogen, which identifies this chemical as possibly carcinogenic to humans.

[4] In June 2012, the California Office of Environmental Health Hazard Assessment added cocamide DEA to the California Proposition 65 (1986) list of chemicals known to cause cancer.