alpha hydroxy acid

noun

Definition of alpha hydroxy acid

: 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

called also AHA

Examples of alpha hydroxy acid in a Sentence

Recent Examples on the Web 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 Pumpkin is packed with skin-care super ingredients, including alpha hydroxy acids, which help boost cell turnover, along with vitamins A and C, which brighten and promote collagen production. Macaela Mackenzie, Allure, 4 Sep. 2018 Pore-detoxing mask The natural alpha hydroxy acids in papaya naturally exfoliate dead skin cells and help dissolve impurities deep down in pores. Lindy Segal, Harper's BAZAAR, 7 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'alpha hydroxy acid.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of alpha hydroxy acid

1899, in the meaning defined above

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Time Traveler for alpha hydroxy acid

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The first known use of alpha hydroxy acid was in 1899

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Cite this Entry

“Alpha hydroxy acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha%20hydroxy%20acid. Accessed 25 Oct. 2021.

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More Definitions for alpha hydroxy acid

alpha hydroxy acid

noun
variants: also alpha hydroxy

Medical Definition of alpha hydroxy acid

: 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

called also AHA

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