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The ingredient, explained

Polyaminopropyl Biguanide

Poly-hexamethylenebiguanide- hydrochloride [1];poly-iminoimidocarbonyl-iminohexamethylene hydrochloride [2];Poly-iminocarbonimidoyliminocarbonimidoylimino-1‚6-hexanediyl- [3];- [4]

Preservative
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Ingredient guide

What it is and what it does

About this ingredient: EU CosIng ingredient registry (via Open Beauty Facts taxonomy) ↗

Preservative
Helps inhibit microbial growth in the cosmetic product.

Function definitions: European Commission ingredient function definitions (SCCNFP/0299/00, pages 16 to 20) ↗

Registry functions describe possible formulation roles, not results for a finished product. A dictionary entry is not an approval or a safety assessment.

A closer look

What the research shows

We have not yet published a checked study for this exact ingredient. This is a gap in our coverage, not a finding that research does not exist or that the ingredient is ineffective.

Ingredient research is not proof that a product containing this ingredient works.

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Products containing this ingredient

All 28 products ↗

From the wider catalogue. Linked by the ingredient list, without an efficacy ranking.

Names and identifiers

INCI name on ingredient lists
POLYAMINOPROPYL BIGUANIDE
CAS registry 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]

Sources for this ingredient record