| 释义 |
alpha-hydroxy acid
al·pha-hy·drox·y acid A0225925 (ăl′fə-hī-drŏk′sē)n. Abbr. AHA Any of various acids, such as citric acid or glycolic acid, that contain a hydroxyl group adjacent to the carboxyl group and are often used in exfoliants and other cosmetics.alpha-hydroxy acid n (Chemistry) a type of organic acid, commonly used in skin-care preparations, that has a hydroxyl group attached to the carbon atom next to the carbon atom carrying the carboxyl group alpha-hydroxy acid
alpha-hydroxy acid (ăl′fə-hī-drŏk′sē)n. Abbr. AHA Any of various acids, such as citric acid or glycolic acid, that contain a hydroxyl group adjacent to the carboxyl group and are often used in exfoliants and other cosmetics.alpha-hydroxy acid Abbreviation: AHA
Any of a class of water-soluble acids derived from fruit or milk, having a hydroxyl moiety in the first position in the molecule. AHAs are used in chemical peels and other skin care products to remove the outer layer of the epidermis. This chemical exfoliation is promoted for its cosmetic effects on wrinkled or sun-damaged skin. See also: acidThesaurusSeeacid |