The natural, non-toxic formula easily removes resin and tar from glass bongs, rigs, bowls, tools, hands, and even clothing! Ooze Resolution cleaning gel is non-toxic and contains no alcohol or abrasives. It is free and clear of VOCs (volatile organic compounds), though they do recommend wearing gloves when using this product. Avoid prolonged contact with the skin to avoid any possible irritation. Each 8oz pouch contains a green, reusable gel cleaner that can be used in two ways. Unscrew the cap, pour about 3oz of solution into the piece