Ce
Cetrimonium Bromide
Cetrimonium Bromide
A positively charged ingredient that conditions hair and helps oil and water mix.
What it does
It’s the bromide form of cetrimonium chloride. Its positive charge makes it cling to hair, which cuts static, and makers also use it to help keep microbes out.
The EU’s ingredient database lists it as a preservative (holds back germs in the product) and an emulsifier (helps oil and water mix).European Commission, CosIng (© European Union, CC BY 4.0) · uses put in plain words by Drop ↗
The evidence, graded
expert consensusUS safety reviewers (2012) judged a large group of trimonium ingredients, cetrimonium bromide among them, safe as used in products made not to irritate. In 1997 they had judged it safe in rinse-off products and at up to 0.25% in leave-on products; a later survey found it at 0.1% to 3%. They noted that cetrimonium bromide can help other ingredients pass into skin, and asked makers to take care what they pair it with.Becker 2012 · International Journal of Toxicology ↗
Graded per the methodology: strong · moderate · emerging · expert consensus. A weak source on a strong claim gets the weaker label.
Also known as
cetyltrimethylammonium bromide
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