Real Scientific Hemp Oil touts itself as being somewhat of a pioneer, as – according to the company – its own variety of CBD oil was the first to hit the mainstream back in 2012. In addition, the brand claims that its RSHO-X CBD liquid is the earliest no-THC product of its kind, making it a sound choice for those worried about whether CBD oil use will influence the results of drug tests. The company is also transparent about the processes that go into making its varieties of CBD-containing hemp oils, helping customers make informed choices as to which of its products are best for them. And minds may be put at ease upon learning that Real Scientific Hemp Oil tests its CBD oil three times – a process which seems to speak to the quality, purity and safety of the provider’s wares.

Owned by CV Sciences, PlusCBD Oil applies experience from the pharmaceutical industry to CBD. The company’s mission: optimize human health with the endless potential of hemp. Using state of the art production facilities and the guidance of a scientific advisory board, PlusCBD Oil is another high-quality purveyor of CBD oil that really takes CBD seriously.
NuLeaf only offers one concentration of CBD oil, 50 mg/ml, and the ingredients are as simple as it gets: USDA Certified organic hemp oil and full spectrum hemp extract. NuLeaf essentially has only one product. But this strategy allows them to keep their prices reasonable and offer bulk buying options—you can buy a bottle of NuLeaf CBD oil containing 240 mg total CBD all the way up to 4,850 mg.
All this talk about THC lands us nicely in the whole “Full Spectrum vs. Pure Isolate” debate. Once you begin shopping for CBD products, you’ll notice a lot of jargon that gets thrown around without much explanation. Now that we’ve introduced THC into the conversation, we can talk about the difference between, and relative benefits of, Full Spectrum CBD and CBD Isolate (and the lesser-known contender: Broad Spectrum).
Dry Mouth: As is the case with many other hemp- and marijuana-based products, CBD oil often leads to a condition known as dry mouth (or cottonmouth). This is likely due to cannabinoids altering receptors in the lower jaw that trigger salivation. In most cases, mild discomfort and stronger-than-average thirst are the only issues associated with dry mouth.

You’ve probably seen PureKana listed on several other “best CBD oils” lists, and it’s for good reason; in our experience (along with maybe a couple of other close competitors), they offer the best overall value in terms of potency, price, customer service, and most importantly, effectiveness. In fact, if I wasn’t continuously trying out new stuff and dedicated to reviewing every single hemp product on the market in an effort to reveal the absolute best CBD oil, I would probably use them exclusively for my lower back pain. Likewise, my partner has said several times that the 600 mg Vanilla tincture is one of his favorites for helping him sleep through the night.

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.   


Insomnia: The anxiety-alleviating and sleep-prolonging qualities of CBD oil make it a good option for many people with insomnia. Those who experience insomnia due to pain or discomfort may also find that using CBD oil alleviates their physical symptoms to a noticeable extent. CBD oil may also promote daytime wakefulness when taken in small amounts; people with insomnia can use it as a pick-me-up if they feel excessively tired due to lack of restful sleep.
It’s also important to select CBD oil products based on your concentration preferences. Some forms of CBD oil – such as vapors and tinctures – normally have higher-than-average concentrations, whereas sprays and topicals tend to have lower concentrations. Remember: higher concentration means more pronounced effects, but not necessarily mean higher quality.
All of NuLeaf’s hemp plants are grown on licensed farms in Colorado using sustainable and 100% organic farming practices. Nuleaf’s CBD oils are made using whole plant extraction. That means the final product is a full-spectrum rather than CBD isolate. Moreover, NuLeaf doesn’t include any additives like preservatives, emulsifiers, or even flavors so the final product remains in its purest form.
Populum has enough confidence in what it sells to offer a 30-day trial of purchases, with the option to send products back within that period if they don’t live up to expectations. That offer speaks to the company’s customer-friendly ethos – and its willingness to answer any questions that people throw at it via email, phone or live chat does so, too. One customer is quoted on Populum’s website as saying that the company’s risk-free guarantee is “also a testament to [its] commitment to making a high-quality product.” Those wanting to see what the fuss is about can sample Populum’s hemp oil tincture – which comes in 250 mg, 500 mg and 1,000 mg concentrations – and cooling gel, safe in the knowledge that they are able to get their money back if need be.

Palmetto Harmony’s backstory is a poignant one, as founder Janel Ralph was spurred on to create the company to help her daughter Harmony, who suffers from an unusual genetic condition. However, according to the producer’s website, Harmony’s quality of life has greatly improved since she began taking CBD oil. And potential customers looking to see if their health could be changed for the better can select from Palmetto Harmony’s broad array of organic CBD oil-containing products, including the company’s flagship whole-plant extract and an unusual time-release patch. The brand’s Holy Cannacense cream, meanwhile, is among the most popular of its range; and also in demand is the acclaimed vape oil, which Palmetto Harmony claims “is best used to calm the mind and soothe inflammation.”
Even complete CBD novices should be thoroughly clued up on the compound and its effects after visiting the handy education section on Infinite CBD’s website. And for those who want to give CBD oil a try but don’t know where to start, there’s also a welcome chart breaking down the ways in which to consume the phytocannabinoid and the products most suited to each method. So, while Infinite CBD’s range may not be as extensive as those of other businesses of its kind, any such shortfall is more than made up for by the wealth of valuable information available to potential customers. What the company does offer, moreover, is good-value isolates – the strongest of which comes in at a powerful 5,000 mg – and capsules blended with caffeine and melatonin for day and night use, respectively. Meanwhile, people with muscle and joint problems might find relief from Infinite CBD’s “Freezing Point” cooling cream.

CBD has proven neuroprotective effects and its anti-cancer properties are being investigated at several academic research centers in the United States and elsewhere. A 2010 brain cancer study by California scientists found that CBD “enhances the inhibitory effects of THC on human glioblastoma cell proliferation and survival.” This means that CBD makes THC even more potent as an anticancer substance. Also in 2010, German researchers reported that CBD stimulates neurogenesis, the growth of new brain cells, in adult mammals.
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