We’ve ranked every one of the high-strength CBD vape oils on this list according to a variety of attributes. We’ve graded them according to potency, quality, strength, flavor, shipping speed, customer service, and pricing; among other factors. Every one of the products on this list has been hand-selected by our editorial team. No matter which product you buy from this list, you can rest easy knowing that you’re buying one of the best high-concentration CBD oils on the planet today.
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.
Customer Service: It’s difficult to find contact information on Calm by Wellness’s website, and their email address is listed incorrectly in two places (we tried sending them an email but it was not delivered). We were, however, able to get a response through Facebook, and the company does offer free shipping and a generous 30-day return policy on all orders.
Other potential side effects include low blood pressure, lightheadedness, and drowsiness, but these have typically only occurred in patients who have exceeded doses of 1,500 mg daily for a period of 4 weeks or more; far more than the average person will need take on a daily basis for chronic pain symptoms. (In fact, the majority of CBD users claim they find an effective dose to be anywhere between 10 and 40 mg daily).
I stopped by Moon Juice after work, feeling a little nervous and excited all at once. “You might notice that your body feels a bit heavy after you try it—sometimes when I take it I feel like I just want to sit down and chill,” said the women behind the Moon Juice counter who helped me. Prepped for potential side effects, I emptied one dropper’s worth of CBD oil into my chamomile tea as soon as I got home … And didn’t feel anything. A few hours later I got into bed and immediately fell asleep.
CBD, on the other hand, was shown to help regulate fear responses by “reducing amygdalar responses to fearful stimuli…and to elicit antipanic effects.” A 2017 article in Current Neuropharmacology backs up this claim. Reviewing both experimental lab animal and human studies, the researchers came to the conclusion that “CBD seems to be a promising drug for the treatment of PD [panic disorder]”.

This review paper on the safety and side effects of cannabidiol by the NCBI, for example, suggests that controlled cannabidiol administration is safe and non-toxic in humans and animals. It also does not induce changes in food intake, nor does it affect physiological parameters like heart rate, body temperature or blood pressure. Also, according to this review paper, “high doses up to 1,500 mg/day of CBD are reportedly well tolerated in humans.”


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Although it is great that you have compiled a long list of the best CBD oils, so that we get some choice also as consumers, however, I rely believe in your well researched information that you share always, and so I feel the number 1. you shared, Purekana is going to make the choice for me. Ordering it tonight, and let’s see how my CBD journey goes from here. A bit nervous though!
Their 350 mg CBD is the original broad spectrum oil that started it all for this company. Green Road’s oil is infused with the highest quality pharmaceutical quality naturally occurring cannabidiol. It is a vegetable glycerin based olive oil which is vapeable and sublingual. This powerful oil is American made by an experienced licensed pharmacist. It is quality you can trust.
Cannabidiol has been shown to halt prions, the proteins that cause neurodegenerative diseases like Creutzfeldt-Jakob disease and mad cow. The formation and accumulation of prions were prevented with the aide of Cannabidiol during a study published in the Journal of Neuroscience in 2007. For mice that were infected, CBD increased their survival time by about a week.
Transparency: Receptra Naturals’ website has a database where you can look up lab reports for their products. The first time we checked, we got some 404 errors for a couple of the lab reports, but these glitches seem to have been fixed since then. We were able to see third-party lab reports for all their tinctures (though, apparently not for their topicals). 
Organic hemp tea releases a full spectrum of cannabinoids that has a different profile to that of the oil. For instance, the CBDa content in hemp tea is naturally higher. Our bestseller is the regular hemp tea and 1.6% loose tea. Free samples of the 1.6% hemp tea bags and loose tea are available whenever you make a purchase over £30 (just add the sample in the ‘cart window’ or tell us in the notes section). The new 4% CBD hemp tea - made with the Futura strain of Cannabis Sativa L. - synergises very well with the strong 20% or the strongest 30% CBD drops. Hemp tea can also be vaporised, smoked or baked with. In 2019, Biopurus is looking to launch a new range of naturally flavoured oils. Visit the Biopurus collection.

This creates myriad, interrelated effects — from mood regulation to immune support and pain regulation. Scientists have a ways to go before they fully understand the impact of CBD on anxiety, but research suggests that CBD increases the levels of the neurotransmitters serotonin and glutamate. These neurotransmitters have long been studied as major players in the regulation of anxiety.

CBD shows promise in the treatment of anxiety disorders, according to a report published in the journal Neurotherapeutics in 2015. Looking at results from experimental research, clinical trials, and epidemiological studies, the report’s authors found evidence that CBD may help treat generalized anxiety disorder, panic disorder, social anxiety disorder, obsessive-compulsive disorder, and post-traumatic stress disorder. However, the authors caution that human-based research on CBD and anxiety is fairly limited at this point.
Customer Service: We’ve always received fast, informative responses to our queries about products and practices, but there are definitely customers out there who have not. A quick perusal of reviews shows customers who had issues with unaddressed orders. It’s hard to know exactly what the problem is in these situations, but the company’s strict return policy (seven days for unopened products only) probably doesn’t help. It should be noted that the company has a solid base of very satisfied customers as well.
Although several clinical studies focused on the health effects of CBD, the results available so far were not enough to convince the FDA to approve it as a drug. The FDA does not agree with its use as a dietary supplement either, but as long as sellers publish the appropriate disclaimers (like those on the CBDPure website and labels), it’s not up to them.

People who experience psychosis may produce too much or even too little cannabinoids (from overactive dopamine receptors). CBD is milder than our internal cannabinoids and helps to re-establish a balance of cannabinoids in the brain. CBD also helps lower inflammation, which is often increased in schizophrenia. THC, on the other hand, is stronger than our internal cannabinoids (anandamide and 2-AG), this way potentially triggering psychosis [46, 48].
This article provides a wealth of practical information for the individual considering CBD as an adjunctive or alternative treatment for pain and or anxiety. CBD works in the body by manipulating receptors throughout organ tissues, the immune system, the pain response system, the hormonal system, and other systemic regulatory systems. While CBD oils have not been reviewed or approved by the FDA for the treatment of these conditions, a wealth of literature, both anecdotal and research-related now exists to help describe both their safety and effectiveness. As discussed in this article, the potential new adopter must be mindful of several important items. First, only those products that are sourced from Industrial Hemp will be considered legal in all states. One must be careful if the product you choose is sourced from the marijuana plant, as those products may contain THC levels above the legal limit in your given state. Secondly, all products are NOT created equal – they differ significantly in strength, absorption, and elimination by the body and in the manner in which they are formulated. One should be mindful of the differences in doses available for each of these products, starting at a low or moderate dose and increasing as needed in order to find the lowest dose that provides the desired relief. In this way, one can individualize usage to maximize effectiveness, while minimizing risk, a proper goal for the use of all medicinals.
Bacon had said that I might need to try two full droppers worth of the oil to really feel its benefits. I knew that I had an incredibly busy and stressful day ahead of me—I needed to fit in a five mile run before work, had lots to do at the office, was scheduled for a busy event in the middle of the day, and had a 2-hour meditation class later that night which would require a lot of mental clarity. Tentatively, I squirted two droppers of CBD oil into my bulletproof coffee and sipped away.
As the CBD Pure Hemp Oil label warns, you should not take the supplement if you are breastfeeding or pregnant, as there isn’t enough information on how it could affect the baby. Also, some studies suggest a long-term heavy use of cannabis can have negative neuropsychologic and behavioral effects, and even cause acute pancreatitis, although the exact mechanisms are still unknown.
Transparency: Fab’s website features third-party lab results for most products. They only have a lab test for one of their tinctures though (which shows results for cannabinoid potency, as well as contaminants like pesticides). Customer service pointed out that the same CBD oil is used for all their products, but since potencies do vary, we appreciate companies that show potency testing for all products.
Because of the strong results of several of these studies, at least one major clinical trial is currently in the works. The trial, conducted by researchers at New York University, will test whether CBD can help people with PTSD deal with alcohol addiction. The results of clinical trials like these will determine whether CBD moves into the mainstream of PTSD treatment.

These are one of the most popular (and effective) choices for arthritis and other forms of localized pain and inflammation. Since the skin acts as an excellent semi-permeable membrane that “let’s the good stuff and keeps the bad stuff out,” rubbing CBD-infused creams into the affected area has proved to be quite effective in terms of both pain and inflammation reduction.

There is a strong sedative quality to CBD hemp oil, making it a popular remedy for people with insomnia, sleeplessness, interrupted sleep, post-traumatic stress disorder, restless leg disorder, and other night-time issues. Dr. Scott Shannon, Assistant Clinical Professor of Psychiatry at the University of Colorado School of Medicine, USA, published a report in the Permanete Journal, in which he recommended either inhaling a small amount of CBD oil, applying it to one’s chest, or even putting a few drops on one’s pillow to help get a good night’s sleep.
‘CBD has proven anti-anxiety effects and may be helpful in depression, based on anecdotal reports,’ says Dr Gordon. ‘I use high CBD prescription cannabis medicine products as part of a mental health protocol with my patients suffering with anxiety and depression. The antidepressant effects of CBD have been shown in animal models, but we now need large, depression-specific studies in humans as the next step.’
Moreover, scientists at the Cajal Institute showed promising results in regards to CBD and Multiple Sclerosis. They used animal models and cell cultures to find that CBD reversed inflammatory responses; within only ten days, mice that were used in the study had superior motor skills and showed progression in their condition. To date, there have been well over 20,000 published scientific articles on cannabinoids and their related effects on all sorts of medical ailments.
A type of anxiety marked by fear in some or all social settings (social anxiety disorder). Some early research shows that taking cannabidiol 300 mg daily does not improve anxiety during public speaking in people with social anxiety disorder. However, other early research in people with social anxiety disorder suggests that taking a higher dose (400-600 mg) may improve anxiety associated with public speaking or medical imaging testing. Also, some research in people who do not have social anxiety disorder shows that taking cannabidiol 300 mg might reduce anxiety during public speaking.

It’s thought that CBD might affect your health by attaching to receptors in the body’s endocannabinoid system—a complex biological system involved in maintaining certain aspects of your health. Emerging research shows that endocannabinoids may play a role in regulating such functions as memory, sleep, and mood, as well as metabolic processes like energy balance. In addition, CBD oil may play a role in improving a variety of health conditions.

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