Bong Cleaner made and bottled in the USA. This is how to use it: Apply our proprietary laboratory-grade solution to the affected areas. The active formula begins breaking down carbon chains and resin structures on contact. Allow the solution to sit for 30 seconds. Watch as stubborn tar and combustion residues detach from the glass surface without the need for manual scrubbing. Rinse thoroughly with warm water. The result is crystal-clear glass with zero film, chemical odor, or residue—ready for immediate professional use.