polyaminopropyl biguanide

POLYAMINOPROPYL BIGUANIDE

Data confidence:High

Function

Preservative, Antimicrobial Agent

EWG Safety Score

4/10Moderate concern

About this ingredient

Polyaminopropyl biguanide is a broad-spectrum antimicrobial and preservative agent used in cosmetic and personal care formulations. It provides protection against bacteria, fungi, and some viruses, helping to maintain product stability and safety. It is commonly used in rinse-off products such as shampoos, conditioners, and body washes.

Found in 1+ sunscreens