Cocamidopropyl hydroxysultaine is a mild cleansing agent derived from coconut oil. It is commonly used in skincare and hair care products as a foaming agent, thickener, and stabilizer. It is generally considered safe for use, but it may cause eye irritation if it comes into direct contact with eyes.
Boosts lather and helps thicken skin care formulas Very low risk of irritating skin
Suitable for all skin types.
Eye irritation if it comes into direct contact with eyes.
Avoid contact with eyes. If you have an allergy to cocamidopropyl betaine, stop using it.
Derived from coconut oil.
Safe for use up to a concentration of 11.5%.
Rated 2 (low hazard).
Cocamidopropyl hydroxysultaine is biodegradable and has little potential for bioaccumulation. Coco betaine is a natural alternative to cocamidopropyl hydroxysultaine. It is derived from coconut oil and beets. It has similar functions and benefits as cocamidopropyl hydroxysultaine, but it may be more irritating to sensitive skin. Cocamidopropyl hydroxysultaine is not a naturally-occurring compound. Part of cocamidopropyl hydroxysultaine is made from coconut oil and glycerin, however, the other half is made from dimethylaminopropylamine, sodium bisulfite and epichlorohydrin. Epichlorohydrin is an organochloride and probable carcinogen. Sodium bisulfite is an irritant and mutagen. Cocamidopropyl hydroxysultaine, the finished and purified product, has not been found to be genotoxic, a reproductive toxin, and is not a known carcinogen. However, it is created with carcinogenic and mutagenic compounds, as noted above. Cocamidopropyl hydroxysultaine is not made from any animal-derived ingredients, and is thus vegan. While cocamidopropyl hydroxysultaine is partially made from coconut oil, and may have a lower ecological footprint than some other surfactants, depending on the working conditions, manufacturing workers and the environment may be exposed to epichlorohydrin, a carcinogen. Studies have found an increase in lung cancer in people exposed to epichlorohydrin on the job. In general cocamidopropyl hydroxysultaine is not a skin irritant when used in a properly-formulated product. However, if the surfactant is not purified, it can contain traces of dimethylaminopropylamine or derivatives thereof that can be irritating. This seems to be not a prevalent issue with most suppliers, however.