alpha-hydroxy acid


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alpha-hydroxy acid

(ăl′fə-hī-drŏk′sē)
n. Abbr. AHA
Any of various acids, such as citric acid or glycolic acid, that contain a hydroxyl group adjacent to the carboxyl group and are often used in exfoliants and other cosmetics.

alpha-hydroxy acid

Abbreviation: AHA
Any of a class of water-soluble acids derived from fruit or milk, having a hydroxyl moiety in the first position in the molecule. AHAs are used in chemical peels and other skin care products to remove the outer layer of the epidermis. This chemical exfoliation is promoted for its cosmetic effects on wrinkled or sun-damaged skin.
See also: acid
References in periodicals archive ?
that, while not containing any alpha-hydroxy acids, is formulated with pycnogenol as well as vitamin E and superoxide dismutase.
and Walmart stores, features a patented Ul-traplex formula that contains alpha-hydroxy acids and other ingredients to exfoliate and hydrate skin.
Howard Murad, founder and CEO of Murad, Inc., El Segundo, CA, his office was among the first to bring alpha-hydroxy acids to the field of dermatology and topical skin care in 1989.
Other active ingredients that may help combat signs of aging include alpha-hydroxy acids (AHAs), which remove the upper layer of skin and stimulate the growth of new skin, and peptides, small protein fragments that may stimulate collagen production.
Strawberries also contain alpha-hydroxy acids, which, when applied to the skin, help to break up the outer layer of dead skin.
Alpha-hydroxy acids (AHAs), namely glycolic acid (from sugarcane), are in many wrinkle creams and exfoliators.
Recent treatments, such as the alpha-hydroxy acids and retinoic acids, can help the skin avoid cracking and give it a more youthful appearance, but the best treatment of all, says the American Academy of Dermatology, is simply to avoid excessive sun exposure.
and Walmart stores, contains the supplier's patented Ultraplex formula, which contains alpha-hydroxy acids and other ingredients to gently exfoliate and hydrate the skin.
With its unique combination of alpha-hydroxy acids and three essential ceramides, AmLactin Cerapeutic provides fast-acting, long-lasting relief from dryness while healing and replenishing skin."
`Evening is the best time to repair any damage, with Vitamin A and AHAs (alpha-hydroxy acids), and occasionally I recommend a treatment such as microdermabrasion (from pounds 95) or MD Formulations Glycolic Facial (from pounds 45) - these boost the effect of whatever they're using at home.
Whether a product costs $9 or $99, according to the doctor, there are three key ingredients to consider: vitamin C (also known as L-ascorbic acid), alpha-hydroxy acids (also known as AHAs, fruit acids and glycolic acid), and retinoids or retinol-like compounds (tretinoin, retinol).
You may have noticed one major omission from our regime that's probably a big part of your programme - products containing alpha-hydroxy acids.