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Cosmetic ingredient dictionary

Steareth-2 in cosmetics: what it is and what it does

Steareth-2 is a cosmetic ingredient that lets oil and water mix, so the product can wash dirt away. Open Beauty Facts finds it in 246 products, most often deodorants.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Steareth-2 do in a product?

In a cosmetic product, Steareth-2 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 Steareth-2 have?

CAS number
9005-00-9 (Generic), 16057-43-5
EC number
500-017-8
CosIng reference
78990

Which products contain Steareth-2?

Open Beauty Facts finds Steareth-2 in the ingredient lists of 246 of the 22,021 products it has a list for, most often deodorants, roll-on deodorants and anti-perspirants.

  • Deodorants47
  • Roll-on deodorants36
  • Anti-perspirants21

Products with it, by country of sale: France 60 · Australia 31 · Germany 27 · Norway 25.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Steareth-2 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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