Benzalkonium chloride is a chemical that has many applications for its antimicrobial properties. It can be found in many household cleaning products, soaps, hand wipes, sanitizer, ointments, personal care products and cosmetic products as it acts as a preservative, surfactant and antibacterial agent. Its properties are beneficial in protecting the products from spoiling. With a chemical formula of C27H42NO2.Cl or C27H42ClNO2, it works by killing microorganisms and preventing them to grow further. Its contact can cause irritation to the eyes and skin.