CBD and other cannabinoids attach to specific receptors in the body found within what is referred to as the endocannabinoid system. In fact, up until recently, scientists didn’t know that these cannabinoids are actually naturally produced in humans and most animals. Some researchers speculate that an endocannabinoid deficiency may be the cause of many disorders and conditions. When CBD is introduced into the body, it binds to receptor cells called CB1 and CB2 receptors.
CBD oil is most readily available as a tincture. This can be taken by applying a few drops under your tongue, holding in your mouth for a few moments so it can be absorbed, before swallowing. It can also be added to water or smoothies. A spray form is available (simply spritz under your tongue), as are capsules, gummies, creams that can be applied topically, and e-liquid for vape pens.
Then there is the matter of which part of the plant is used. THC tends to be more concentrated in the leaves of the plant, while CBD in its stem and seeds. It should be noted that these aspects are relative. Some degree of agreement exists that for the purest CBD, the stalk of a hemp plant (varieties of cannabis generally grown for fiber manufacturing, low in THC), or much less often the seeds. Taking into account the fact that CBD supplements are usually in an oil form, one may fathom the origins of the nearly ubiquitous hemp oil dietary supplements.