alpha-hydroxy acid
noun [ C or U ] uk/ˌæl.fə.haɪˌdrɒk.si ˈæs.ɪd/ us/ˌæl.fə.haɪˌdrɑːk.si ˈæs.ɪd/ (abbreviation AHA)
α-羟基酸
a type of organic acid that is used in some products intended to remove dead skin cells and to make the skin look healthy, attractive, and young
Alpha-hydroxy acids and vitamin E, common ingredients in anti-ageing creams, are also common irritants. α-羟基酸和维生素E是抗衰老面霜的常见成分，也是常见的刺激物。
If your face needs a wakeup call, try a cream containing alpha-hydroxy acid, which removes dead cells and allows new cells to appear. 如果你的脸需要重唤青春，可以试试含有α-羟基酸的面霜，它可以去除死细胞，让新细胞出现。
- More examples
- Instead of using a grainy scrub, try an exfoliant containing alpha-hydroxy acids.
- Alpha-hydroxy acids soften the appearance of wrinkles but don't eliminate the underlying problem.
- If you have sensitive skin avoid products containing tea tree oil, alpha-hydroxy acid, salicylic acid, or benzyl peroxide.
- Fruit acids, present in citrus fruits, pomegranate and green apples, are from the alpha-hydroxy acid (AHA) family and were the wonder ingredients of the Nineties.
- They offer non-surgical chemical peels and alpha-hydroxy acid (AHA) skin treatments.