Build my profileBuild my profile

Cosmetic ingredient dictionary

C9-11 Pareth-8 in cosmetics: what it is and what it does

C9-11 Pareth-8 is a cosmetic ingredient that lets oil and water mix, so the product can wash dirt away. Open Beauty Facts finds it in 5 products, most often hair sprays.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does C9-11 Pareth-8 do in a product?

In a cosmetic product, C9-11 Pareth-8 lets oil and water mix, so the product can wash dirt away, and keeps oil and water mixed. The EU’s CosIng database lists these jobs for it: surfactant and emulsifying.

surfactantemulsifying

What other names and numbers does C9-11 Pareth-8 have?

CAS number
68439-46-3
CosIng reference
74874

Which products contain C9-11 Pareth-8?

Open Beauty Facts finds C9-11 Pareth-8 in the ingredient lists of 5 of the 22,021 products it has a list for, most often hair sprays and dishwashing liquid.

  • Hair sprays1
  • Dishwashing liquid1

Products with it, by country of sale: United States 3 · Canada 1 · France 1.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where C9-11 Pareth-8 turns up, not how much of the market it is.

On these listsSurfactants and cleansersEmulsifiers

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’.

  1. European Commission: CosIng cosmetic ingredient database (functions, description, EU annex entry)
  2. 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

Create a website profile with the things you avoid and the people you check for.

Build my profile

Save and edit your profile on this website. App transfer is not available yet.