The e-liquid in vaporizer products usually contains a propylene glycol or vegetable glycerin-based liquid with nicotine, flavoring and other chemicals and metals, but not tobacco. Some people use these devices to vape THC, the chemical responsible for most of marijuana's mind-altering effects, or even synthetic drugs like flakka, instead of nicotine.
^ Scott Gottlieb (July 30, 2019). "The CBD craze is getting out of hand. The FDA needs to act". The Washington Post. Retrieved July 31, 2019. ... many of the compound’s expansive benefits are fanciful, and in fact, the sale of much of the product is illegal under current law. The Food and Drug Administration must act to make sure commercial interests don’t strip away any legitimate value that the compound might have.

CBD does not appear to have any psychotropic ("high") effects such as those caused by ∆9-THC in marijuana, but may have anti-anxiety and anti-psychotic effects.[10] As the legal landscape and understanding about the differences in medical cannabinoids unfolds, experts are working to distinguish "medical marijuana" (with varying degrees of psychotropic effects and deficits in executive function) – from "medical CBD therapies” which would commonly present as having a reduced or non-psychoactive side-effect profile.[10][54]
Cannabis – A type of flowering plant that includes three distinct variations: Cannabis ruderalis, Cannabis indica, and Cannabis sativa. Cannabis has a wide range of industrial and medical applications. It has been used since antiquity for its sturdy fiber, for oils, and for medicinal purposes. However, it has also been used as a recreational drug, a fact that renders the cultivation of cannabis strictly regulated because of some variations including high concentrations of THC.
Convection vaping works by heating up the material by blowing hot air through it. The material is transformed into vapor without direct contact. Since the air flows through the material evenly, convection vaping results in a smooth taste; however, the vaporizer may take a while to reach the optimal temperature level. Convection vaporizers are usually more expensive.

CBD is otherwise most often used for its potential to provide calm and relaxation. On a chemical level, CBD is known to possess powerful antioxidant properties, which may contribute to reducing inflammation and relieving pain. Ongoing research and study are required to fully understand the potential of the cannabinoids therapeutic effects, but CBD may also help to:
Parkinson’s disease. Some early research shows that taking cannabidiol daily for 4 weeks improves psychotic symptoms in people with Parkinson’s disease and psychosis. But taking a specific cannabis extract (Cannador) that contains THC and cannabidiol does not appear to improve involuntary muscle movements caused by the anti-Parkinson’s drug levodopa in people with Parkinson’s disease.
There are thousands of unique varieties of hemp. The cultivars used for CBD oil contain significantly higher concentrations of CBD than others. Using these uniquely potent plants, it is possible to extract cannabis oil that contains significant levels of cannabidiol, as well as essential vitamins, minerals, fatty acids, terpenes, flavonoids, and other non-psychoactive cannabinoids.