1.Glycolic Acid 70%,99% assay 
2.Cas no.:79-14-1 
3.Molecular weight:76.05 
4.Clear or Colorless Liquid(70%), Clear or Colorless Crystal(99%) 
5. C2H4O3(%):70.0-72.0M 
Use Of Glycolic acid 
Glycolic acid is used to smooth wrinkles, fade hyperpigmentation and sun damage, and generally improve the tone and texture of the skin. As such, it is often used in anti-aging products. 
Glycolic acid, because of the small size of its molecules, can easily penetrate the skin. It helps loosenthe bonds that hold skin cells together, allowing dead skin cells to slough off more effectively. The skin feels softer and smoother, and its overall appearance is enhanced. 

Glycolic 70% liquid is also well used on cirucut board cleaning and Boiler cleaning 

70% grade 
Appearance:colorless transparent liquid 
Assay:more than 70% 
Usage: 
cleaning agents for air conditioner,boiler,metal surface,industrial flow pipe,production equipment of diary products,condenser,circuit etc. 

99% grade. 
Appearance:white crystal 
Assay:more than 99%