Cannabinol results from the degradation of THC. There is little of it in the fresh plant, but decarboxylation often raises the amount of CBN in the plant as an effect. CBN is only mildly psychoactive and has a higher affinity for the CB2 receptor than the CB1 receptor, linking CBN to the body’s immune system. In hemp oil, CBN is present in levels of 0.2% or lower.
Considered the most scientific method this is also among the cleanest techniques of extraction. Referred to as sub-critical or super critical CO² method, it uses carbon dioxide under different pressures to extract the medicinal oil. This is among the most expensive techniques of extraction due to use of hi-tech equipment that can be operated by trained personnel only. The advantage of this technique is that the end product is the purest form of CBD oil which is highly potent and free of chlorophyll. However if the heat used during extraction is too high it can damage terpenes in the oil that have therapeutic benefits and provide flavor and essence to the oil strain.
Because the FDA considers CO2 extraction to be GRAS or “generally regarded as safe” for commercial extraction, this method is popular in the food industry. The stability of supercritical CO2 also allows most compounds to be extracted with little damage. In the coffee industry, supercritical CO2 is already widely accepted as safer than traditional solvents to extract the caffeine from decaffeinated coffee beans.

Extracting CBD from the hemp plant is just one part of the process for making CBD hemp oil. Extracted CBD oil is less than palatable. If the consumer’s desire is to make CBD oil part of their everyday routine, producers try to make the oil at least a little bit tasty. Also, consumers require a choice when it comes to the product’s potency, or the strength of the CBD oil-based product. Producers then need to dilute the raw CBD oil to accommodate their needs.


For the large majority of average users though, a high-quality full-spectrum CBD oil will be the better, more efficient option. These concentrated oils have delivered incredible results so far, and have been observed to effectively treat everything from anxiety, to diabetes, to severe chronic pain. And with the inevitable continued research that’s to come, it’s expected that the quality of full-spectrum products will only continue to get better and better. (And of course, given that hemp products are legal in all 50 states, you don’t even need a medical marijuana card to purchase it).
In other words, many popular claims remain unfounded – and overlook the fact that there's a difference between CBD that's studied in labs for particular conditions and CBD products that are sold to consumers for general well-being. "What happens is people say, 'Look, CBD is harmless and it doesn't get me intoxicated, so I'm going to take it for what ails me," says Dr. Jordan Tishler, a Harvard physician and CEO of InhaleMD, a Boston-area practice specializing in cannabis therapeutics. "Then they're going to get some perceived benefit because that's the way the placebo effect works, and then they go and trumpet this."

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Given CBD’s reputation as a popular, artisanal remedy, one would think that Epidiolex would command a lot of “off label” attention. After all, physicians often prescribe pharmaceuticals off label to treat conditions that were not the actual focus of clinical trials. But the costly price tag for Epidiolex (more than $30,000 annually) precludes off label prescribing as well as affordable access for tens of millions of Americans without health insurance.
Another concern is about medications with which CBD might interact. This won’t be an issue with most drugs, says Sunil Kumar Aggarwal, M.D., Ph.D., a palliative medicine physician and scientist who studies cannabis and integrates it into his Seattle medical practice. The exceptions are blood thinners, IV antibiotics, and other drugs whose exact dosing is crucial and must be monitored closely, he says. (Of course, if you have a health problem, talk to your doctor before using CBD, and never take it instead of seeing your physician for a serious condition.)
The health benefits of full-spectrum hemp go beyond it being a source of CBD. The array of cannabinoids and other natural constituents found in full-spectrum hemp oil work have been shown in studies to work together in what’s referred to as the “entourage effect.” Together, these compounds work harmoniously to magnify their therapeutic properties. The complex mix of cannabinoids, essential nutrients, protein, and healthy fats work synergistically to encourage homeostasis and balance in our health.
That leaves those touting CBD’s effectiveness pointing primarily to research in mice and petri dishes. There, CBD (sometimes combined with small amounts of THC) has shown promise for helping pain, neurological conditions like anxiety and PTSD, and the immune system—and therefore potentially arthritis, diabetes, multiple sclerosis, cancer, and more.
In other words, many popular claims remain unfounded – and overlook the fact that there's a difference between CBD that's studied in labs for particular conditions and CBD products that are sold to consumers for general well-being. "What happens is people say, 'Look, CBD is harmless and it doesn't get me intoxicated, so I'm going to take it for what ails me," says Dr. Jordan Tishler, a Harvard physician and CEO of InhaleMD, a Boston-area practice specializing in cannabis therapeutics. "Then they're going to get some perceived benefit because that's the way the placebo effect works, and then they go and trumpet this."
“There’s no oversight,” says Marcel Bonn-Miller, PhD, adjunct assistant professor of Psychology in Psychiatry at the University of Pennsylvania and author of the JAMA article. Beyond the label, he adds, “There’s no consistency. You know that every Hershey’s bar you buy and every Coke you buy will be exactly the same. But that’s not the case with the majority of CBD products. It’s not unexpected to see variability within a given brand.” This means that you may notice improvements the first time you buy and try a particular product, but none the next.
Before we directly compare the both, let’s break down what each is. Full spectrum CBD oil comes with all the cannabinoids present in hemp. If you see full spectrum hemp CBD oil for sale, it’ll include many cannabis compounds such as Cannabicycol (CBL), Tetrahydrocannabivarin (THCV), Cannabinol (CBN), Cannabichromevarinic Acid (CBCVA) and more. It also contains a very small amount of THC, (.3%, as is legally allowed).

'If the Patient Information Leaflet that comes with your medication says to avoid grapefruit juice, for instance, then do not take CBD, as the same type of interaction can affect circulating blood levels of your medicine. Even if the leaflet does not mention grapefruit juice, you should still check with your doctor before taking CBD. You should also not take CBD if you are pregnant or breastfeeding.’

Keep in mind, too, that CBD product companies use different CBD sources, extraction methods and production techniques – and not all resulting products are created equal. You'll have to do your own research to determine which companies you're willing to trust, Asquith says. Plus, how the products are packaged and consumed – be they in oils, creams or capsules – affect how they're absorbed in the body. Edibles, for example, are well-absorbed, while oils taken under the tongue are "baloney," Tishler says. And of course, salespeople at herb shops don't have the same mission, knowledge, training or oversight as physicians and pharmacists. "We have spent the last 100 years or so developing the pharmaceutical system because it works," Tishler says.
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