However, many people are flocking to CBD, and they frequently exploit its putative health advantages to explain the high price. So, if you're looking for an all-natural plant extract with a lot of excitement surrounding its advantages, CBD oil may be worth the investment. If not, there are many other options out there. CBD oil is made from marijuana or hemp, which are both species of the genus Cannabis. The term "marijuana" usually refers to the high-potency form of cannabis that is used for recreational purposes; "hemp" refers to low-potency cannabis that is used for industrial purposes. Hemp and marijuana differ primarily in their concentration of tetrahydrocannabinol (THC), the substance responsible for giving marijuana its euphoric effects. THC is also the reason why these plants are illegal to consume in some countries; it's considered a psychotropic drug like LSD and MDMA. In general, marijuana has more THC and less CBD than hemp, but there are exceptions. Marijuana can contain up to 19% THC by weight, while hemp typically contains only 0.3% or less. However, marijuana that is grown for fiber has been known to contain higher amounts of CBD. In fact, one study conducted by Kaiser Permanente found that patients who used medical marijuana to treat pain had lower rates of serious injury than those who didn't.