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

In addition to exfoliating skin to reveal a brighter, complexion, the alpha hydroxy acid peel is packaged with a moisturizing mask that goes on as soon as the peel has dried on your face (about 30 seconds). Ashley Weatherford, The Cut, "Are You Exfoliating Your Face Wrong?," 11 July 2018 Treatment Plan: Products with hydroquinone and alpha hydroxy acids can speed up the fading process. Kelsey Castañon, Seventeen, "3 Types of Acne Scars — and How to Get Rid of Them," 11 Jan. 2018 Treatment Plan: Products with hydroquinone and alpha hydroxy acids can speed up the fading process. Kelsey Castañon, Seventeen, "3 Types of Acne Scars — and How to Get Rid of Them," 11 Jan. 2018 Treatment Plan: Products with hydroquinone and alpha hydroxy acids can speed up the fading process. Kelsey Castañon, Seventeen, "3 Types of Acne Scars — and How to Get Rid of Them," 11 Jan. 2018 One of Dermstore's bestsellers, this daily under eye cream is packed with fine line–fighting ingredients like alpha hydroxy acids and hyaluronic acid to plump skin. Kathleen Mulpeter, Health.com, "The Best Anti-Aging Products to Buy at the Dermstore Sale," 27 Mar. 2018 Treatment Plan: Products with hydroquinone and alpha hydroxy acids can speed up the fading process. Kelsey Castañon, Seventeen, "3 Types of Acne Scars — and How to Get Rid of Them," 11 Jan. 2018 Treatment Plan: Products with hydroquinone and alpha hydroxy acids can speed up the fading process. Kelsey Castañon, Seventeen, "3 Types of Acne Scars — and How to Get Rid of Them," 11 Jan. 2018 Treatment Plan: Products with hydroquinone and alpha hydroxy acids can speed up the fading process. Kelsey Castañon, Seventeen, "3 Types of Acne Scars — and How to Get Rid of Them," 11 Jan. 2018

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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The first known use of alpha hydroxy acid was in 1899

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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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