L-()-Lactic acid is widely used in the food industry as a preservative, flavor enhancer, and pH regulator. It is commonly added to dairy products, baked goods, and beverages to extend shelf life and improve taste. In the cosmetic industry, it serves as an active ingredient in skincare products, particularly in chemical peels and moisturizers, due to its exfoliating and hydrating properties. Additionally, it is utilized in the pharmaceutical sector for formulating medications and as a raw material in biodegradable plastics production. Its role in industrial applications includes acting as a descaling agent and a pH adjuster in various manufacturing processes.