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Cosmetic ingredient dictionary

Butyloctanoic Acid in cosmetics: what it is and what it does

Butyloctanoic Acid is a cosmetic ingredient that lets oil and water mix, so the product can wash dirt away. Open Beauty Facts finds it in 11 products, most often deodorants.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Butyloctanoic Acid do in a product?

In a cosmetic product, Butyloctanoic Acid lets oil and water mix, so the product can wash dirt away, cleans the skin, hair or teeth, and keeps oil and water mixed. The EU’s CosIng database lists these jobs for it: surfactant, cleansing and emulsifying.

surfactantcleansingemulsifying

What other names and numbers does Butyloctanoic Acid have?

CAS number
27610-92-0
EC number
248-570-1
CosIng reference
31727

Which products contain Butyloctanoic Acid?

Open Beauty Facts finds Butyloctanoic Acid in the ingredient lists of 11 of the 22,021 products it has a list for, most often deodorants and deodorant sticks.

  • Deodorants6
  • Deodorant sticks2

Products with it, by country of sale: Germany 4 · Morocco 2 · France 1 · Czech Republic 1.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Butyloctanoic Acid 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

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