单词	alpha hydroxy acid
释义	alpha hydroxy acid noun variants or alpha-hydroxy acid ˌal-fə-hī-ˈdräk-sē-  plural alpha hydroxy acids or alpha-hydroxy acids : any of various carboxylic acids with a hydroxyl group attached at the alpha position specifically : one (such as malic acid or lactic acid) that occurs in natural products (such as fruits, sugarcane, or yogurt) and is used in cosmetics for its exfoliating effect on the surface layer of skin Although many salons offer alpha hydroxy acid peels, which minimize the appearance of facial lines, never have the treatment on your first visit to a salon. Kathleen Conway Engles Alpha-hydroxy acids are applied as a cream or lotion. They reduce fine wrinkling and improve overall skin texture. Mayo Clinic Health Letter —abbreviation AHA compare beta hydroxy acid Example Sentences Recent Examples on the Web Mandelic acid is an alpha hydroxy acid (AHA) derived from bitter almonds. Devon Abelman, Allure, 30 Mar. 2022 Products to try: Glycolic acid is an alpha hydroxy acid (AHA) that gently exfoliates the skin, helping to get rid of the dead skin cells that can clog pores. Sarah Jacoby, SELF, 27 Dec. 2021 For those unfamiliar, lactic acid is an alpha hydroxy acid (or AHA) that boosts cell turnover and sweeps away pore-clogging debris to reveal brighter, smoother skin. Sarah Han, Allure, 28 July 2021 On one night, use anti-aging solutions such as retinoids, alpha hydroxy acid or glycolic acid -- whether prescription or over-the-counter -- then skip a night or two, depending on the dryness of your skin. Sandee Lamotte, CNN, 5 June 2021 The 10 percent vegan lactic acid is an AHA (alpha hydroxy acid) that works to slough away dead skin cells for a brighter, more even complexion. Stephanie Perry, Southern Living, 18 May 2021 These botanicals work synergistically with glycolic acid, enhancing the power of this alpha hydroxy acid extracted from sugarcane. Jenna Rosenstein, Harper's BAZAAR, 28 Apr. 2021 Queen Cleopatra bathed in sour milk to reap the benefits of naturally occurring lactic acid, an alpha hydroxy acid, and the Romans and Greeks were known to use corrosive agents such as limestone as a manual exfoliant. Washington Post, 12 Apr. 2021 Glycolic acid is a type of alpha hydroxy acid (AHA). Lauren Corona, chicagotribune.com, 2 Apr. 2021 See More Word History First Known Use 1899, in the meaning defined above Medical Definition alpha hydroxy acid noun variants or alpha-hydroxy acid also alpha hydroxy or alpha-hydroxy : any of various carboxylic acids with a hydroxyl group attached at the alpha position specifically : one (as glycolic acid, malic acid, or lactic acid) that occurs in natural products (as fruits, sugarcane, or yogurt) and is used in cosmetics for its exfoliating effect on the surface layer of the skin —abbreviation AHA compare beta hydroxy acid
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