L-(-)-Malic acid is widely used in the food and beverage industry as a flavor enhancer and acidulant. It provides a tart, fruity taste, making it a key ingredient in sour candies, fruit-flavored drinks, and low-calorie products. In the pharmaceutical sector, it is utilized in effervescent tablets and oral care products due to its ability to improve taste and stability. Additionally, it is employed in cosmetics and personal care items as a pH adjuster and skin conditioning agent. Its chelating properties also make it useful in industrial applications for metal cleaning and water treatment processes.