Our house cartridges are made from organically produced and pesticide free distillate. The cartridges are premium casings that are lead free and heavy metal free. We do not use any additives to cut the contents of the cartridges meaning they are some of the highesy potency products you fill find in our sphere. You can tell the quality of the materials used to produce this product by the thickness of the distillate oil inside the cartridge which appears to defy gravity and not move even when the cartridge is turned upside down! These are a customer favorite and we stand by them wholeheartedly. Durban Poison is a sativa that is known for having a cerebral experience with clear headed feelings.