Glycollic Acid Hydroxyacetic acid has pharmaceutical grade, tech and cosmetic grade. Purity : 99% crystal Glycollic AcidGlycollic acid is also called Hydroxyacetic Acid/Glycolic Acid. Glycolic Acid Crystal (99%) :Used in the fine synthesis of medicine . Used as ingredient of cosmetics, adhesives , petroleum emulsion splitter, soldering paster and coatings. 99% Glycollic Acid