alpha hydroxy acid

noun

variants or alpha-hydroxy acid
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

Examples of alpha hydroxy acid in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Suited for sensitive skin, Ren’s gel cream steers clear of exfoliating agents, such as alpha hydroxy acids, that could cause irritation. Jenny Berg, Vogue, 31 Oct. 2024 One of Pavitt’s hero products, Mandelic Clearing Serum, contains mandelic acid, a gentle alpha hydroxy acid that can treat acne. Ariana Yaptangco, Glamour, 14 Oct. 2024 The formula contains alpha hydroxy acids (AHAs), which exfoliate the topmost layer of the skin, and beta hydroxy acids (BHAs), which penetrate deeper to clear pores. Kat Romero, Rolling Stone, 10 Oct. 2024 This limited-edition gift box contains three of the brand's most powerful formulas, including its hero Resurfacing Serum, which brightens and smoothes skin with a smart blend of vitamin C, alpha hydroxy acids (glycolic and mandelic), and retinol. Angela Trakoshis, Allure, 27 Sep. 2024 See all Example Sentences for alpha hydroxy acid 

Word History

First Known Use

1899, in the meaning defined above

Time Traveler
The first known use of alpha hydroxy acid was in 1899

Dictionary Entries Near alpha hydroxy acid

Cite this Entry

“Alpha hydroxy acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/alpha%20hydroxy%20acid. Accessed 28 Nov. 2024.

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
Last Updated: - Updated example sentences
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