1. Food industry: It is mainly used in the food processing industry such as candy, beverages (such as beer, wine and lactic acid drinks). It is known as an absolutely safe food additive as an acid and taste regulator. It can also be used for processing and preservation of cool drinks and vegetables;
2. Pharmaceutical industry: L-lactic acid is an important pharmaceutical intermediate, which can be used to produce erythromycin Ringer's solution infusion, L-calcium lactate, L-sodium lactate, L-zinc lactate, L-ferrous lactate and other lactic acid medicine, and can also be used as sterilization and lactic acid disinfectant in operating rooms, wards and laboratories
3. Cosmetics: It can be used as moisturizer, moisturizer, skin renewal agent, PH regulator, acne remover, and scaling remover; 4. Pesticide industry: L-lactic acid has high biological activity, is non-toxic and harmless to crops and soil, and can be used to produce new environment-friendly pesticides, which has been vigorously promoted in Japan, the United States and other developed countries.
5. Tobacco industry: proper addition of L-lactic acid can improve the quality of tobacco and maintain the humidity of tobacco; Leather manufacturing: it can make leather soft and delicate, thus improving the quality of leather; Textile industry: it can be used to treat fibers, make them easy to color, increase luster and soft touch;
6. Other industries: In addition to the above uses, L-lactic acid can also be used to produce biodegradable plastics - polylactic acid and green environmental solvents - L-methyl lactate, L-ethyl lactate, etc. Quality standard for heat-resistant and food-grade L-lactic acid
Lactic acid is used in many different industries, including the food, beverage, pharmaceutical, and cosmetic industries. In food, it is mainly used as a preservative and flavor enhancer, while in the cosmetic and pharmaceutical industries, it is commonly used as an exfoliant and skin conditioning agent. It is also used in medical settings for tissue disinfection, as a blood buffer, and for pain relief.
What is lactic acid used for? Lactic acid is an alpha-hydroxy acid (AHA) used in many skin care products. It is used to treat wrinkles, acne, hyperpigmentation, and other skin conditions.
Begin by using a product with a low concentration of lactic acid, such as 2-5%. Start by using it once or twice a week and gradually increase the frequency as your skin gets used to it.
Use a clean cotton pad or applicator and gently apply the product to your skin. Avoid the delicate area around the eyes.
Let the product sit on your skin for 10-15 minutes before rinsing it off with lukewarm water.
After rinsing off the lactic acid, use a gentle moisturizer to help soothe and rehydrate your skin.5. Use sunscreen. Because lactic acid can increase your skin’s sensitivity to the sun, it is important to always use a sunscreen with an SPF of 30 or higher when going outside.
En 
