Alpha Lipoic Acid is an antioxidant with both fat-soluble and water-soluble properties. It can be synthesized by the human body and also obtained from foods such as spinach, broccoli, and liver. Its unique feature is that it can function in the lipid environment of cells and also penetrate into aqueous regions to scavenge free radicals, thus earning the title of "universal antioxidant". As a powerful antioxidant, Alpha Lipoic Acid not only directly combats the damage of reactive oxygen species to cells but also helps regenerate other antioxidant substances such as vitamin C, vitamin E, and glutathione, enhancing the overall effectiveness of the body's antioxidant system. In terms of physiological functions, it is involved in energy metabolism processes, especially playing an important role in the conversion of glucose into energy. Meanwhile, studies have found that it may help maintain normal blood sugar levels, protect nerve cells, and is used in the field of skin health to counteract signs of aging caused by oxidative stress. Due to its multiple effects, Alpha Lipoic Acid is often made into dietary supplements and widely used in health management and nutritional support fields.