Benzalkonium chloride has three main categories of use: as a biocide, a cationic surfactant, and phase transfer agent in the chemical industry. It is widely used in cosmetics, wet wipes, hand and surface sanitisers.
Benzalkonium is an antiseptic agent used as a preservative in medications this salt is used in a great variety of pharmaceutical products such as eye, ear, and nasal drops or sprays as an excipient ingredient serving as an antimicrobial preservative.
or as a disinfectant in cleaning products.