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alpha-hydroxy acid

   Also found in: Medical, Wikipedia 0.03 sec.
al·pha-hy·drox·y acid  (lf-h-drks)
n.
Any of various fruit acids that are capable of trapping moisture in the skin and initiating the formation of collagen.
alpha-hydroxy acid
n
(Chemistry) a type of organic acid, commonly used in skin-care preparations, that has a hydroxyl group attached to the carbon atom next to the carbon atom carrying the carboxyl group


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This fragrance-free tonic contains three active ingredients, namely cytopurine (6-benzyl aminopurine), pentadecane (glyceryl pentadecanoate: PDG), and alpha-hydroxy acid derivative, and can effectively promote hair growth.
Lion to Add New Item for Its Best-selling Hair Growth Tonic by JCNN News Summaries
For instance, he explains why alpha-hydroxy acids soften the appearance of wrinkles but don't eliminate the underlying problem.
Vanity, Vitality, and Virility: the Science Behind the Products You ... by Science News
Scrub hands every other day for a couple minutes using an alpha-hydroxy acid product.
My hands feel like sandpaper in the winter, and hand cream doesn't ... by Girls' Life
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