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 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, "Summer Fridays Launches the Pumpkin Overtime Face Mask Just in Time for Fall," 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, "Natural DIY Face Masks for Every Skin Type and Concern," 7 Nov. 2019 Glycolic Acid The tiniest of the alpha hydroxy acids (AHA), glycolic acid is a go-to for even exfoliation. Patricia Weigel Shannon, Southern Living, "Superpower Skin Care Ingredients That We're Calling MVPs," 7 Apr. 2020 The standout feature is alpha hydroxy acid, which is known for increasing cell turnover so hands will stay smooth. cleveland, "Dry, cracked hands from all the washing, antibacterial gel? Try these 16 highly-rated lotions," 27 Mar. 2020 Pick-me-ups enhanced with alpha hydroxy acid and moisturizing ingredients are just what these rainy days need. Meg Hemphill, The Hollywood Reporter, "5 Skincare Must-Haves From Brands Used by Meghan Markle and Angelina Jolie," 18 Jan. 2020 Packed with alpha hydroxy acids, hyaluronic acid and peptides, Waldorf likes this eye cream for its protective antioxidant benefits. NBC News, "How to reduce dark under-eye circles, according to dermatologists," 29 Jan. 2020 Citric acid: An alpha hydroxy acid derived from citrus fruit and often used to adjust the pH of products. Nia Decaille, Washington Post, "A guide to the confusing and sometimes controversial ingredients in your cosmetics," 7 Feb. 2020 Chanel Sublimage Lotion Lumière Exfoliante, a gentle gel lotion, sloughs off dead cells thanks to alpha hydroxy acid, while vanilla orchid protects skin from stressors. Meg Hemphill, The Hollywood Reporter, "5 Skincare Must-Haves From Brands Used by Meghan Markle and Angelina Jolie," 18 Jan. 2020

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. 2020.

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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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