DL-Malic acid is widely used in the food and beverage industry as an acidulant and flavor enhancer. It provides a smooth, tart taste, making it a popular ingredient in fruit-flavored drinks, candies, and jams. It also acts as a preservative, extending the shelf life of products by maintaining acidity levels.

In the pharmaceutical industry, it is utilized in the formulation of effervescent tablets and syrups, where it aids in improving solubility and bioavailability of active ingredients. Additionally, it is used in skincare products for its exfoliating and moisturizing properties, helping to improve skin texture and hydration.

In agriculture, DL-Malic acid is employed as a chelating agent in fertilizers, promoting nutrient absorption by plants. It also finds use in industrial cleaning agents due to its ability to dissolve mineral deposits and rust effectively.