Stearalkonium Chloride is a product of stearic acid, a fatty acid naturally occurring in many plants. Most frequently, it is used in hair products like conditioners and anti-frizz treatments to combat static. It also doubles as a surfactant, meaning it attracts dirt and oil from skin and hair. Stearalkonium Chloride is also known to have antimicrobial properties, meaning it has shown to inhibit bacterial and microbial growth.