WATER (and) POLYAMINOPROPYL BIGUANIDE is an aqueous-based cationic preservative that is active against spoilage bacteria. Compatible with a wide range of aqueous based cosmetics and personal care formulations, PHMB’s gentle nature makes it ideal for both rinse-off and leave-on applications like shampoo (with cationic, nonionic or amphoteric surfactants), hair care products, skin creams, skin lotions, baby products, and wet wipes