These trichomes are tiny, hair-like crystals that cover the leaves and buds of the cannabis plant. Trichomes product the hundreds of known cannabinoids that can be found in cannabis. Of the 100+ cannabinoids that have been identified in the cannabis species, CBD and THC have been studied the most extensively for their role in the endocannabinoid system.
Isolates are typically the CBD oil product of choice for those who get drug tested or are sensitive to other cannabinoids such as THC. Products labeled as isolates will generally be highlighted as being 99+% “pure CBD.” Usually, these products will have nothing but CBD in them because the CBD has literally been isolated from everything else. You can find pre-made isolate oils that typically consist of a carrier oil, such as MCT oil, infused with the crystalline isolate powder. You can also find the “raw” CBD crystalline powder or slabs (a form of concentrate) on its own.
Tinctures: Tinctures are another popular way to use CBD, likely because you can easily gauge exactly how much cannabidiol you are ingesting, like CBD oil. A tincture is usually extracted with alcohol or another solvent. With a tincture, you use a dropper and place the drops under your tongue. Sometimes, manufacturers will use carrier oils, natural flavors or fatty oils in their tinctures.
Industrial hemp is a very hardy plant, able to be be grown in areas where other crops will fail. It can withstand periods of drought, heat and frost and also be cultivated without pesticides or other chemicals in many instances – however, it can be subject to attack by insect pests. It doesn’t have huge water requirements or a great need for ongoing care. The plant grows quite quickly, achieving heights of 4 metres in four months.
Since the passing of the 2014 Farm Bill, however, there are a handful of states that have begun growing hemp in the US. This has led to a noteworthy increase in domestic production, as well as increased options for quality industrial hemp-derived CBD products. Domestic industrial hemp must be certified and registered in the state its grown in, which upholds growers to much stricter standards than are found overseas.
The etymology is uncertain but there appears to be no common Proto-Indo-European source for the various forms of the word; the Greek term kánnabis is the oldest attested form, which may have been borrowed from an earlier Scythian or Thracian word. Then it appears to have been borrowed into Latin, and separately into Slavic and from there into Baltic, Finnish, and Germanic languages. Following Grimm's law, the "k" would have changed to "h" with the first Germanic sound shift, after which it may have been adapted into the Old English form, hænep. However, this theory assumes that hemp was not widely spread among different societies until after it was already being used as a psychoactive drug, which Adams and Mallory (1997) believe to be unlikely based on archaeological evidence. Barber (1991) however, argued that the spread of the name "kannabis" was due to its historically more recent drug use, starting from the south, around Iran, whereas non-THC varieties of hemp are older and prehistoric. Another possible source of origin is Assyrian qunnabu, which was the name for a source of oil, fiber, and medicine in the 1st millennium BC.
Zynerba is no longer pursuing a version of that drug for osteoarthritis, says Dr. Clauw, and there are currently no standard recommendations for what dosage or formulation of CBD (in either oral or topical form) might work best for pain relief. But he does want pain patients to know that CBD products may be worth a try—and that they may provide relief, even without the high that products with THC produce.