GLYCOLIC ACID Hydroxyacetic acid has pharmaceutical grade, tech and cosmetic grade. Purity:70% solution & 99% crystal powder Glycolic AcidGlycolic acid is also called Hydroxyacetic Acid. Hydroxyacetic Acid Solution:Its 70% solution can be used as cleaning agent. The mixture of glycolic acid 20% solution and formic acid 1% is a highly efficient and low-cost cleaning agent used in air-conditioning, ...