Cosmetic ingredient dictionary
Laureth-9 in cosmetics: what it is and what it does
Laureth-9 is a cosmetic ingredient that keeps oil and water mixed. Open Beauty Facts finds it in 22 products, most often hair care.
By Bravoora teamUpdated Sources checked 2 sourcesHow we check
What does Laureth-9 do in a product?
In a cosmetic product, Laureth-9 keeps oil and water mixed. The EU’s CosIng database lists this job for it: emulsifying.
What other names and numbers does Laureth-9 have?
- CAS number
- 3055-99-0, 9002-92-0, 68439-50-9
- EC number
- 221-284-4, 500-002-6, 500-213-3
- CosIng reference
- 34930
Which products contain Laureth-9?
Open Beauty Facts finds Laureth-9 in the ingredient lists of 22 of the 22,021 products it has a list for, most often hair care, shampoos and hair conditioners.
Products with it, by country of sale: Turkey 5 · France 4 · Germany 4 · United States 4.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Laureth-9 turns up, not how much of the market it is.
Bravoora reads this ingredient for everyone you shop for: an allergy or intolerance, a vegan or vegetarian diet, a calorie or protein goal, and the labels on supplements and skincare too. Build a profile · For dermatologists, dietitians and doctors
Sources
The job, the description and the EU annex entry are CosIng’s; the fragrance allergens are the EU Annex III names Bravoora’s label checker reads; the product counts are Open Beauty Facts’.
- European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
- Open Beauty Facts: product database, 77,506 products, read 13 October 2026, ODbL
Contains information from Open Beauty Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check
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