Used as an active ingredient in antiperspirants due to its ability to temporarily block sweat glands. It forms a gel-like plug on the surface of the skin, reducing sweat flow and controlling body odor. Also utilized in small amounts in cosmetic products for its astringent properties, helping to tighten pores and reduce oiliness. In industrial settings, it serves as a precursor in the production of other aluminum compounds and in water treatment processes for flocculation, where it helps remove impurities by clumping fine particles together for easier filtration.