At times, terpenes or propylene glycol are used to thin the oil enough to make it easier to vaporize.
The first time I had marijuana oil a long time ago back in college a decade ago, it wasn’t actually good. A good pal of mine made it with butane but he didn’t purge the solvent from the end product correctly & you could taste it whenever you inhaled the smoke or vapor. When I had it a few years ago, a friend knew another person in CA who was shipping them to our state through the mail system. Even though it was supposedly CO2 extracted cannabis distillate oil, it was so dark in color that it was almost black. At the time I thought that this was normal, however now I easily know otherwise. When I got cannabis distillate oil from a cannabis dispensary not so long ago, it was phenomenal & it was a light amber color. I was able to learn that these marijuana oils are completely at the heart of many popular products at the cannabis dispensary. When you choose to get marijuana tinctures, those have marijuana oil mixed with alcohol so they will dissolve under the tongue. If you manage to get a topical cream, that will have marijuana oil in it as well. Capsules & edibles are also formulated with cannabis distillate oil in most situations. Last however not least, you will be able to find marijuana oils in cannabis vape cartridge products. At times, terpenes or propylene glycol are used to thin the oil enough to make it easier to vaporize. Apart from that, it’s 100% cannabis distillate oil inside. I’m totally amazed that a single product could be used to make dozens of other products that are on the same shelves at the dispensary. Many people have no idea at all about this fact when they shop for their cannabis products.