Transparency: cbdMD seems to be going through a transition with their third-party testing practices. Until recently, they only released a lab report for the CBD concentrate they use for all their products, but would not show potency testing for individual products. That seems to be changing. Currently, the only lab report on the website is for their concentrate (and it’s over a year old). But if you contact customer service, they’ll send you a lab report for any product. 
Generalized pain, for instance, has dozens upon dozens of high profile research and clinical studies that have been carried out in universities and laboratories around the globe. One of the most well-publicized of these studies took place back in 2008, in which results determined that “cannabinoid analgesics (pain relievers) have generally been well tolerated in clinical trials … with acceptable adverse event profiles (meaning acceptable effectiveness for practical use).
And believe it or not, there are actually plans to launch another new product — KOI Naturals. The company hasn’t revealed the date yet, but we know it will cost $79.99 for the weakest of the three strengths (750, 1500, and 3000mg). This will be a tincture that is consumed orally, and it will consist of the KOI CBD Full-Spectrum Blend infused in MCT coconut oil.
A newcomer to our CBD oils ranking, RE: Botanicals is no stranger to hemp. Founded by John Roulac, a long-time hemp advocate and founder of the organic superfoods brand Nutiva, RE: Botanicals is one of the only CBD brands to earn the USDA organic seal. They deserve a shout-out for prioritizing regenerative agriculture, while keeping prices reasonable.   
‘I recommend starting with a low dose and slowly building up over a few weeks, to find the dose that works best for you,’ agrees Dr Brewer. ‘For example, start with Healthspan High Strength CBD Oil 6.4mg Capsules, taking one to three daily. Then, if needed, move up to Super Strength CBD 15mg Capsules, taking one to two daily. CBD is not psychoactive and is not addictive. I prefer capsules, as CBD drops have a strong taste, although filter-clear peppermint flavoured drops are available.’
Koi CBD truly believes in helping people and improving their customer’s quality of life. The team at Koi CBD takes pride in their ability to manufacture one of the most “clean” CBD oils on the market: their product’s CBD purity is over 99%. Koi CBD only uses the purest ingredients and strives to produce only the highest rated CBD oil. They are dedicated to helping people restore balance in their lives.
In a small study published in the journal JCI Insight in 2017, researchers observed that CBD may help prevent stress-related changes in blood pressure. For the study, nine healthy male volunteers took a single dose of either CBD or placebo. Compared to those given the placebo, those treated with CBD had lower blood pressure both before and after experiencing a stressful event.

If you think you may have a medical emergency, call your healthcare provider or 911 immediately. Any mention of products or services is not meant as a guarantee, endorsement, or recommendation of the products, services, or companies. Reliance on any information provided is solely at your own risk. Please discuss any options with your healthcare provider.


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.”
Based in Los Angeles, Calm by Wellness plans to be among the largest hemp-growing and CBD extraction facilities in the world by the end of 2019. The company sources their hemp from Colorado and uses clean CO2 technology to extract their CBD and other cannabinoids (no THC though!). The company is also GMP and ISO9001 food-grade manufacturer certified.

And believe it or not, there are actually plans to launch another new product — KOI Naturals. The company hasn’t revealed the date yet, but we know it will cost $79.99 for the weakest of the three strengths (750, 1500, and 3000mg). This will be a tincture that is consumed orally, and it will consist of the KOI CBD Full-Spectrum Blend infused in MCT coconut oil.

The short answer is no, you do not need a prescription for CBD oil. No prescription or doctor is needed to purchase any CBD products that do not contain THC. THC is the psychoactive compound in marijuana. However, CBD oil is derived from the hemp plant which contains minuscule amounts of THC (less than 0.3%). Some states legalized the purchase and use of CBD oil containing THC and in those states, you are not required to have a doctor’s prescription.
In one survey, parents of children who suffer from treatment-resistant epilepsy and use CBD were asked about the benefits. 19 parents were included, 84% of which said that CBD reduced the frequency of seizures. Two parents said that CBD completely resolved seizures. Parents also reported improved alertness, sleep, and mood. Some side effects were drowsiness and fatigue [54].
Another major reason why CBD oil has been positively received in some parts of the medical community is its apparent effect on cancer and tumor growth.A study done by the researchers of the Institute of Toxicology and Pharmacology, University of Rostock, Germany recommends the use of CBD oil (even direct injection into tumors) to eliminate or reduce the size of the tumors. The antioxidants in CBD hemp oil also provide anti-mutagenic properties and lower users’ risk of cancer.
Simply place the CBD Vape Oil in the designated tank (cartridge), turn on the vaporizer, and smoke the CBD vapor. The great thing about taking CBD vaporized is that it works very fast. The bioavailability is very high, which means that a very large part of the CBD being used is absorbed by the body. The CBD gets into the bloodstream very fast through the absorption in the lungs.
There are more than 80 cannabinoids found in cannabis plants, with THC being the primary one, followed by CBD. However, in the hemp plant, which is a different strain of the species Cannabis sativa, CBD is the main active ingredient, and THC is barely present, making its use and legality more widespread. The reason that CBD is such an effective form of support for human health is due to the body’s endogenous cannabinoid system. This regulatory structure of the body has millions of cannabinoid receptors in the brain and nervous system, which react not only to plant-derived cannabinoids (such as hemp and marijuana) but also to natural cannabinoids produced within our body. When hemp oil is used and processed by the body, it is effectively boosting the function of the endocannabinoid system, helping our body regulate itself in many different ways.
A study published by David Cheng, Postdoctoral Scientist, Neuroscience Research, University of New South Wales, NSW, Australia, says that CBD has a potential as a preventive measure against symptoms of Alzheimer’s. This presents yet another exciting development for medical researchers, given the persistent challenges to finding effective solutions for this condition.
The short answer is no, you do not need a prescription for CBD oil. No prescription or doctor is needed to purchase any CBD products that do not contain THC. THC is the psychoactive compound in marijuana. However, CBD oil is derived from the hemp plant which contains minuscule amounts of THC (less than 0.3%). Some states legalized the purchase and use of CBD oil containing THC and in those states, you are not required to have a doctor’s prescription.
Unlike other CBD oils, PureKana really does excel in CBD oil extractions due to their unique CO2 extraction process which provides a near 99% pure CBD oil. PureKana Natural CBD Oil is an unflavored, dietary and nutritional supplement for increased health and vitality. It is extremely effective in helping to treat chronic pain, support recovery from exercise-induced inflammation, swelling, management of normal, everyday stresses, and to help promote healthy sleep cycles.
With so many companies popping up every day, we’ve done the hard work for you. We bring you the best CBD oil guide and the top 25 brands that made our list based on CBD oil quality, effectiveness, customer service and of course price. Please note, this article is updated constantly, so don’t forget come back from time to time to see the most updated information.
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). 

Unlike other CBD oils, PureKana really does excel in CBD oil extractions due to their unique CO2 extraction process which provides a near 99% pure CBD oil. PureKana Natural CBD Oil is an unflavored, dietary and nutritional supplement for increased health and vitality. It is extremely effective in helping to treat chronic pain, support recovery from exercise-induced inflammation, swelling, management of normal, everyday stresses, and to help promote healthy sleep cycles.
Based in Los Angeles, Calm by Wellness plans to be among the largest hemp-growing and CBD extraction facilities in the world by the end of 2019. The company sources their hemp from Colorado and uses clean CO2 technology to extract their CBD and other cannabinoids (no THC though!). The company is also GMP and ISO9001 food-grade manufacturer certified.
Unfortunately due to the disappointing and down right inaccurate position of the federal government in classifying Cannabis as a schedule one drug, most research institutions risk federal funding if they conduct real research on Cannabis. This has dramatically limited the potential for real research by real scientists to be conducted. That research is critical to better understanding the multitude of therapeutic effects of the various chemical constituents found in Cannabis.
Another field in which CBD is creating a buzz is in the area of mood disorders like anxiety and depression. Both conditions have been treated with a variety of medications, courtesy of Big Pharma, that have had varying levels of success. Again, the long list of side effects can be off-putting to someone who just wants to get through the day without the sweaty tension of anxiety or the gray haze of depression.

The statements made regarding these products have not been evaluated by the Food and Drug Administration. The efficacy of these products has not been confirmed by FDA-approved research. These products are not intended to diagnose, treat, cure or prevent any disease. All information presented here is not meant as a substitute for or alternative to information from health care practitioners. Please consult your health care professional about potential interactions or other possible complications before using any product.
We’ve linked to the best, most reputable source for each one of these products (most frequently the manufacturer’s site). While you may want to shop around (and we encourage it!), we recommend that you buy from one of our preferred sites. That way you’ll know that you’re getting an authentic product at a reasonable price, from a company that actually stands behind their product.
How does it work, you might ask? The alkaloids (the active substances in this oil) are responsible for lowering overall inflammation in the body and stimulating the parasympathetic nervous system, both of which are responsible for kicking the body into “rejuvenation mode” and “recovery mode”. This is the simplest and most concise definition we can give you without explaining a whole medical book to you.

The site of course carries the complete and up-to-date range of CBD products, plus it is the best place to purchase all of the Koi-specific vaping accessories. A prime example is the KOI Fitt Starter Kit by ENVII which contains a vaporizer, charging port, charging cable and one 50mg Koi Blue Pod for $44.99. Incidentally, you can purchase two pods for $21.99. Each one contains 50mg of CBD per cartridge.
Research on CBD and anxiety has generally looked at cannabis as a whole product, not as CBD as a standalone compound. Some studies suggest that it can help with anxiety: like this 2011 study that suggests CBDcan reduce social anxiety or this 2015 review that says CBD could be promising for many forms of anxiety. It’s also important to consider whether the CBD comes from the cannabis plant and therefore may include THC, a cannabinoid that for some, induces anxiety. Read our comprehensive article on CBD and anxiety, here.
If you think you may have a medical emergency, call your healthcare provider or 911 immediately. Any mention of products or services is not meant as a guarantee, endorsement, or recommendation of the products, services, or companies. Reliance on any information provided is solely at your own risk. Please discuss any options with your healthcare provider.
When the founders of Love CBD, Phil and Dan Culbertson, saw the success of CBD oil in the USA, they saw an opportunity for launching a CBD business in the UK. This family-run business from Newmarket, Suffolk, realised that many of the CBD oils available in the UK at that time (in 2014) were of substandard quality and decided to become CBD connoisseurs and put together blends with what they considered to be the best hemp strains out there.

CBD is readily obtainable in most parts of the United States, though its exact legal status is in flux. All 50 states have laws legalizing CBD with varying degrees of restriction, and while the federal government still considers CBD in the same class as marijuana, it doesn’t habitually enforce against it. In December 2015, the FDA eased the regulatory requirements to allow researchers to conduct CBD trials. Currently, many people obtain CBD online without a medical cannabis license. The government’s position on CBD is confusing, and depends in part on whether the CBD comes from hemp or marijuana. The legality of CBD is expected to change, as there is currently bipartisan consensus in Congress to make the hemp crop legal which would, for all intents and purposes, make CBD difficult to prohibit.
Another reported side effect of CBD administration is an unpleasant dry sensation in the mouth. This effect seems to be caused by the involvement of the endocannabinoid system in the inhibition of saliva secretion. A study published by Argentinian researchers back in 2006 showed that cannabinoid receptors (type 1 and 2) are present in the submandibular glands which are responsible for producing saliva.
Hi Steven. Good question! Yes, our Buyer’s Guide for the best CBD oil is always being updated where necessary. As you may know, the CBD industry continues to grow at a fast rate, which means there are new CBD brands constantly popping up every day. We do our best to test and review the best products and if we feel they deserve a spot in our Top 10, we’ll update our rankings accordingly. This week we added cbdMD into our list and removed PureKana.

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.

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