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Ingredient dictionary

Cocamide DEA

Also listed as: Coconut Diethanolamide, Cocamide Diethanolamine

A coconut-oil-based foam booster and thickener that helps cleansers and shampoos build a richer lather and a creamier texture. It is on the label of 1 product in our library. Checked against our library November 6, 2026.

The catch: it can irritate sensitive skin, and people who prefer to avoid diethanolamine-based ingredients may want to skip it.

What Cocamide DEA does

  • Boosts and stabilizes foam
  • Thickens water-based formulas
  • Adds a smooth, creamy feel

Cocamide DEA is made by reacting fatty acids from coconut oil with diethanolamine, a small amine molecule. The result has an oily tail that likes grease and a water-loving head that likes water. That two-sided shape lets it stabilize foam and add body to a formula.

Formulators use it mainly in rinse-off cleansers and shampoos, where a rich, creamy lather is part of the appeal. It feels smooth and slightly slippery, then rinses off cleanly. Because it is made with diethanolamine, formulators keep an eye on trace impurities. That is standard practice for ingredients in this family.

Good for

People who like a rich, creamy lather in their rinse-off cleanser or shampoo.

Frequently asked questions

Is Cocamide DEA safe?

Cocamide DEA is widely used in rinse-off cleansers and shampoos. It can irritate sensitive skin, so people with reactive skin may prefer a gentler option. Formulators control the small diethanolamine impurities that can come with it. Patch testing a new product is a sensible habit.

Does Cocamide DEA make shampoo foam more?

Yes, that is one of its main jobs. It helps a cleanser or shampoo build a denser, longer-lasting lather. It does not clean by itself. Surfactants do that work, and this ingredient supports them by stabilizing the foam.

Products with Cocamide DEA

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Amazon UK prices as of 6 November 2026, 04:30 GMT; Amazon sets the final price at checkout.