Widely used as an active ingredient in antiperspirants, aluminum chlorohydrate works by forming temporary plugs in sweat ducts, reducing the amount of sweat that reaches the skin surface. It is favored in personal care products due to its effectiveness at low concentrations and its ability to be formulated into various product types, including roll-ons, sprays, and sticks. Beyond consumer hygiene products, it is also used in water treatment as a coagulant to remove impurities and suspended particles. Its astringent properties make it useful in some topical medicinal applications, such as treating minor wounds or skin irritations, where it helps reduce moisture and inhibit bacterial growth.