N-Acetyl-DL-methionine is primarily used in the pharmaceutical and nutraceutical industries as a dietary supplement to support liver health and detoxification processes. It aids in the synthesis of glutathione, a crucial antioxidant that helps protect liver cells from damage caused by toxins, alcohol, and oxidative stress. Additionally, it is utilized in veterinary medicine to improve liver function in animals, particularly in cases of hepatic lipidosis or other metabolic disorders. In skincare formulations, it is sometimes incorporated for its potential to enhance skin repair and reduce signs of aging by promoting collagen production and cellular regeneration. Its role in supporting metabolic pathways also makes it valuable in research applications related to amino acid metabolism and oxidative stress studies.