a substance made from sugars in milk, by the action of certain enzymes. it is used in skin care products to reduce wrinkles and soften the skin. it is also being studied in the treatment of hand-foot syndrome (a condition marked by pain, swelling, numbness, tingling, or redness of the hands or feet) in patients receiving chemotherapy. lactic acid is also made in muscles in the body and is used in many chemical processes in the body. it is a type of alpha hydroxyl acid.
出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2011/07/28 10:49 UTC 版)
Lactic acid, also known as milk acid, is a chemical compound that plays a role in various biochemical processes and was first isolated in 1780 by the Swedish chemist Carl Wilhelm Scheele. Lactic acid is a carboxylic acid with the chemical formula C3H6O3. It has a hydroxyl group adjacent to the carboxyl group, making it an alpha hydroxy acid (AHA).