Cosmetic ingredient dictionary
Potassium Stearate in cosmetics: what it is and what it does
Potassium Stearate is a cosmetic ingredient that lets oil and water mix, so the product can wash dirt away. Open Beauty Facts finds it in 24 products, most often shaving.
By Bravoora teamUpdated Sources checked 2 sourcesHow we check
What does Potassium Stearate do in a product?
In a cosmetic product, Potassium Stearate 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.
What other names and numbers does Potassium Stearate have?
- CAS number
- 593-29-3
- EC number
- 209-786-1
- CosIng reference
- 37027
Which products contain Potassium Stearate?
Open Beauty Facts finds Potassium Stearate in the ingredient lists of 24 of the 22,021 products it has a list for, most often shaving, soaps and shaving soaps.
Products with it, by country of sale: Germany 8 · United States 6 · France 5 · Vietnam 1.
Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Potassium Stearate 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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