Randy’s Black Label Cleaner is a best seller. This response is based solely on the results that Black Label produces after every single use. Black Label is a lightning fast resin and goo cleaning solution for any metal, glass, or ceramic smoking utensil. Just apply Black Label to any piece, shake, and let it soak for a few minutes before rinsing out in warm water. In no time Randy’s Black Label will have your piece looking good as new, and performing like the day you pulled it off the shelf.