Alpha-hydroxy acids (AHAs) are a group of organic acids commonly used in the cosmetic and skincare industry. These acids are derived from natural sources such as fruits, milk, and sugar cane. They are known for their exfoliating properties and are used to treat various skin conditions such as acne, hyperpigmentation, and fine lines.
Definitions
Alpha-hydroxy acids are a group of organic acids that have a hydroxyl group attached to the alpha position of the carboxyl group. These acids are water-soluble and have a low molecular weight, which allows them to penetrate the skin easily.
Origin
Alpha-hydroxy acids have been used for centuries in traditional medicine to treat various skin conditions. The use of AHAs in skincare products became popular in the 1990s when scientists discovered their exfoliating properties.
Meaning in different dictionaries
According to Merriam-Webster, alpha-hydroxy acids are “any of a group of naturally occurring or synthetic carboxylic acids that have a hydroxyl group attached to the alpha position of the carboxyl group and that are used especially in cosmetics and dermatology to exfoliate the skin and improve its appearance.”
The Oxford English Dictionary defines alpha-hydroxy acids as “a group of organic acids that are used in skincare products to exfoliate the skin and improve its texture and appearance.”
Associations
Alpha-hydroxy acids are commonly associated with skincare products, particularly those used for exfoliation and anti-aging. They are also used in chemical peels and other dermatological procedures.
Synonyms
Some synonyms for alpha-hydroxy acids include glycolic acid, lactic acid, citric acid, and malic acid.
Antonyms
There are no direct antonyms for alpha-hydroxy acids, but some opposites may include harsh chemicals or abrasive physical exfoliants.
The same root words
The root words of alpha-hydroxy acids include “alpha,” which refers to the position of the hydroxyl group on the carboxyl group, and “hydroxy,” which refers to the presence of a hydroxyl group.
Example Sentences
- “I use a skincare product with alpha-hydroxy acids to help exfoliate my skin and improve its texture.”
- “My dermatologist recommended a chemical peel with glycolic acid, an alpha-hydroxy acid, to help reduce my acne scars.”
- “Citric acid, an alpha-hydroxy acid found in lemons, is a natural exfoliant that can help brighten the skin.”