Cosmetic ingredient dictionary

Hydroxyethylpiperazine Ethane Sulfonic Acid in cosmetics: what it is and what it does

Hydroxyethylpiperazine Ethane Sulfonic Acid is a cosmetic ingredient that keeps the product's acidity steady. Open Beauty Facts finds it in 39 products, most often face makeup.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Hydroxyethylpiperazine Ethane Sulfonic Acid do in a product?

In a cosmetic product, Hydroxyethylpiperazine Ethane Sulfonic Acid keeps the product's acidity steady. The EU’s CosIng database lists this job for it: buffering.

buffering

What other names and numbers does Hydroxyethylpiperazine Ethane Sulfonic Acid have?

CAS number
7365-45-9
EC number
230-907-9
CosIng reference
56812

Which products contain Hydroxyethylpiperazine Ethane Sulfonic Acid?

Open Beauty Facts finds Hydroxyethylpiperazine Ethane Sulfonic Acid in the ingredient lists of 39 of the 22,021 products it has a list for, most often face makeup, makeup and anti-ageing face care.

  • Face makeup10
  • Makeup9
  • Anti-ageing face care3
  • Foundations2

Products with it, by country of sale: France 11 · Netherlands 10 · United States 4 · United Kingdom 3.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Hydroxyethylpiperazine Ethane Sulfonic Acid 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’.

  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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