2-Amino-2-methyl-1-propanol hydrochloride is primarily used in the pharmaceutical industry as a buffering agent to maintain stable pH levels in formulations, enhancing drug stability. It serves as an intermediate in the synthesis of organic compounds, including surfactants, pharmaceuticals, and polymers. In cosmetics, it functions as a pH adjuster, emulsifier, and stabilizer in skincare and haircare products. It is also applied in water treatment to control acidity, prevent corrosion, and improve water quality. Additionally, its properties make it valuable in chemical research and development for creating specialized reagents and additives.