hydroxy acid


Also found in: Thesaurus, Medical, Legal, Encyclopedia, Wikipedia.

hydroxy acid

n
1. (Elements & Compounds) any acid, such as sulphuric acid, containing hydroxyl groups in its molecules
2. (Elements & Compounds) any of a class of carboxylic acids that contain both a hydroxyl group and a carboxyl group in their molecules

hydrox′y ac′id


n.
an organic acid containing both a carboxyl and a hydroxyl group.
[1895–1900]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.hydroxy acid - any acid that has hydroxyl groups in addition to the hydroxyl group in the acid itself
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
hydroxybenzoic acid - a crystalline derivative of benzoic acid
juniperic acid - a crystalline acid found in the exudations of some conifers
2-hydroxybenzoic acid, salicylic acid - a white crystalline substance with a bitter aftertaste; used as a fungicide or in making aspirin or dyes or perfumes
tartaric acid - an acid found in many fruits; used in soft drinks and confectionery and baking powder
References in periodicals archive ?
Alpha hydroxy acid cleansers do not dry out the skin the way that salicylic acid cleansers do because their hydrophilic nature makes them unable to penetrate through sebum.
Glycolic acid is probably the most common alpha hydroxy acid and has the reputation of being one of the safest forms of alpha hydroxy acid.
Select a cleanser with ingredients such as salicylic acid or alpha hydroxy acid to unplug debris from pores," she tells us.
EXFOLIATE--Use a loofah, scrub, or alpha hydroxy acid (AHA) cleanser.
JVS-Polymers Oy, Espoo, Finland has been granted a patent for a biodegradable, curable structurally star shaped polyester resin composition, characterized in that the resin composition is based on hydroxy acid units structural units derived from unsaturated difunctional monomers; structural units derived from polyol monomers or polyacid monomers, the composition being the polycondensation product of 60-99.
Specifically, the FDA recommended that the label should appear on all products and read as follows: "Sunburn Alert: This product contains an alpha hydroxy acid (AHA) that may increase your skin's sensitivity to the sun and particularly the possibility of sunburn.
Chemicals which are projected to record double-digit growth through 2005 due to their novel or improved performance include coenzyme Q10, which combines antioxidant and exfoliant action; poly hydroxy acid, a hydroxy acid with a reduced risk of skin irritation; eflornithine hydrochloride, a hair growth retardant with new commercial applications; finasteride, a hair-growth stimulant; and a wide range of botanical and herbal extracts which have crossed over from the nutraceutical industry and bring with them an established reputation of safety and health benefits.
At the end of the 1990s, demand for alpha hydroxy acid lagged as the fruit acid lost its novelty and saturation of the mass market was approaching.
Workers oxidize their major hydroxy acid to the corresponding diacid.
Salicylic acid is sometimes referred to as a beta hydroxy acid, and is often combined in glycolic acid-based oily- or acne-prone skin care products.
Look for products that contain alpha hydroxy acid and vitamin A.