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NCI Dictionary of Cancer Terms

alpha hydroxyl acid  listen  (AL-fuh hy-DROK-sil A-sid)

  One of a group of substances that are found in several types of fruit and in milk. They are used in skin care products to reduce wrinkles and soften the skin. Examples of alpha hydroxyl acids are glycolic acid, lactic acid, and citric acid. Also called AHA and fruit acid.