Grunge Off glass cleaner cleans away grungy build-up and cuts through residue rapidly to get sparkling clean results. Grunge Off advanced cleaning technology was designed for all types of glassware and is gentle enough to clean your most valuable pieces, yet tough enough to clean your daily drivers - whether used for dry herbs or concentrates. The unique non-abrasive formulation cleaning technology protects glass from tiny invisible scratches as it uses no grit or salt in its cleaning action. Grunge Off is easy to use, reusable, requires no scrubbing, and it's alcohol free. For best results use Grunge Off often to resist build-up use only on glass products.