L-malic acid is an important component of natural juice. Compared with citric acid, it has high acidity but a soft taste. It has a special fragrance, does not damage the mouth and teeth, and has low calories. It is a new generation of food sourness, known as "the most ideal Food Sour Agent", which has been replacing citric acid in foods for the elderly and children since 2013. The soft drink prepared with L-malic acid is thirst-quenching and refreshing, with a sour taste of apple, close to natural juice. It is widely used in various foods such as wine, beverages, jams, chewing gum, etc., and has the tendency to gradually replace citric acid. It is one of the organic acids with the largest consumption and good development prospects in the world's food industry.

L-malic acid contains natural emollient ingredients, which can dissolve the "sticky matter" stuck between dry scaly dead cells, thereby removing wrinkles on the skin surface and making the skin white, smooth and elastic, so it is very popular in cosmetic formulas; L-malic acid can be used to prepare a variety of flavors and spices, and is used in a variety of daily chemical products, such as toothpaste, shampoo, etc.