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Cosmetic ingredient dictionary

Polyaminopropyl Biguanide in cosmetics: what it is and what it does

Polyaminopropyl Biguanide is a cosmetic ingredient that keeps the product from spoiling. Open Beauty Facts finds it in 34 products, most often cleansers.

By Bravoora teamUpdated Sources checked 2 sourcesHow we check

What does Polyaminopropyl Biguanide do in a product?

In a cosmetic product, Polyaminopropyl Biguanide keeps the product from spoiling. The EU’s CosIng database lists this job for it: preservative.

preservative

What other names and numbers does Polyaminopropyl Biguanide have?

CAS number
32289-58-0 [1], 27083-27-8 [2], 28757-47-3 [3], 133029-32-0 [4]
EC number
608-723-9 [1], 608-042-7 [2], 923-111-4 [3], - [4]
CosIng reference
36692

Which products contain Polyaminopropyl Biguanide?

Open Beauty Facts finds Polyaminopropyl Biguanide in the ingredient lists of 34 of the 22,021 products it has a list for, most often cleansers, cleansing waters and micellar water.

  • Cleansers5
  • Cleansing waters5
  • Micellar water4
  • Eye makeup remover2

Products with it, by country of sale: France 19 · United States 4 · Italy 1 · Czech Republic 1.

Counted on 13 October 2026 from Open Beauty Facts, which volunteers fill from real packs: it shows where Polyaminopropyl Biguanide turns up, not how much of the market it is.

On these listsPreservatives

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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