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Cosmetic ingredient dictionary

Quaternium-33 in cosmetics: what it is and what it does

Quaternium-33 is a cosmetic ingredient that makes hair easier to comb, softer or shinier. Open Beauty Facts finds it in 5 products, most often hair care.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Quaternium-33 do in a product?

In a cosmetic product, Quaternium-33 makes hair easier to comb, softer or shinier and reduces static, so hair stays flat. The EU’s CosIng database lists these jobs for it: hair conditioning and antistatic.

hair conditioningantistatic

What other names and numbers does Quaternium-33 have?

CAS number
72102-40-0, 86221-07-0
EC number
276-339-5
CosIng reference
79247

Which products contain Quaternium-33?

Open Beauty Facts finds Quaternium-33 in the ingredient lists of 5 of the 22,021 products it has a list for, most often hair care and shampoos.

  • Hair care4
  • Shampoos2

Products with it, by country of sale: France 4 · Chile 1.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Quaternium-33 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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