Terpenes are found in plants and are used for protecting plants from predators(also attracting them) and creating resins that make up a plants smell. Terpenes are organic compounds produced by many plants on earth. Terpenes are normally strong in odor and can be therapeutic. Terpenes make up essential oils. The FDA considers many terpenes like the main ones found in cannabis og kush to be food. These compounds are known as food grade terpenes and are used as flavor agents.