GBL will be the precursor chemical to GHB As well as in your body is rapidly metabolized into GHB. … GBL is used in industrial chemistry in britain and is also widely out there in the shape of wheel cleaners, cleaning solvents, multi-objective stain removers and chrome polish. Gamma-butyrolactone GBL Butyrolactone (Scrub the wheel: Honestly, It i… Read More