L-(-)-Malic acid is widely used in the food and beverage industry as an acidulant to enhance flavor and provide a tart taste. It is commonly found in fruit-flavored products, candies, soft drinks, juices, and wine, where it contributes to a balanced and refreshing acidity. In the pharmaceutical sector and dietary supplements, it is utilized in effervescent tablets, oral care products, and supplements to improve taste, act as a pH adjuster, support energy metabolism, and reduce fatigue. Additionally, it plays a role in cosmetics and personal care items, where it functions as an exfoliant and skin brightener in formulations like peels and serums. Its chelating properties also make it useful in industrial applications for metal cleaning and water treatment processes.