Bong Renew uses the power of emulsification to attack the resin or grease buildup on a molecular level meaning it has no need for alcohol or other harsh chemicals and it works better than most others on the market, as you will see for yourself. Not only is Bong Renew easy to use it is also not only safe for you, it is also safe whether you are using a glass bong, pipe or any other acrylic or plastic device. we are also safe for use with silicone products and doesn't contain any Alcohol. Sold in 500mL bottles for $20 each or in cases (6 bottles per case). 1-10 cases - $10 per bottle 11-24 cases - $9 per bottle 25+ cases - $8 per bottle