Easily restore any dirty smoke piece like new - 1. Enjoy better tasking cleaner smoke with Purple Urkel Cleaner. Our biodegradable formula was developed to safely and effectively lift away even the toughest smoke resin buildup. Taste the smoke, not the resin. 2. No scrubbing needed let it soak n sit then Zen Master does the rest (soak times 1 hour to 5 hours depending on nature/condition of resin buildup). 3. Odor neutralizer. 4. Non-toxic/biodegradable. 5. Breaks down resin buildup restoring and cleansing your smoke pieces to a shine.