In order to determine which companies were included on this best cbd oil list and how they were ranked, each prominent provider on the market (Note: we pulled our list of brands from other established and credible CBD rankings like: this one and this one.) was allocated six individual Rank Scores based on their performance in the following metrics:
The vast majority of CBD oils come in bottles measuring either 15 milliliters (mL), or 0.5 ounces; or 30 mL, or 1 ounce. However, CBD concentration is more important than bottle size. Concentration refers to the ratio of hemp oil solution (measured in mL) compared to the amount of CBD cannabinoid (measured in milligrams, or mg). A 15-mL bottle may contain 100 mg of CBD, 300 mg, 500 mg, or more. The higher the mg amount, the stronger the CBD oil will be. For this reason, the ‘mg’ measurement is also referred to as the oil’s strength; i.e., 400-mg oil might be called 400-strength oil.
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This is good news for the best CBD oil companies because the Farm Bill allows for the legal cultivation of industrial hemp, under certain circumstances, which can be a source of CBD. But CBD can also come from non-industrial hemp, namely the marijuana plant that most are more familiar with. Therefore, whether or not CBD oil for pain is legal can be a question of which “version” of the cannabis plant it was sourced from. If it was sourced from industrial hemp, (which contains less than 0.3% THC by volume), and it was cultivated under the Farm Bill, then it is legal.

This Pure CBD Tincture from Elixinol allows you to absorb more cannabinoids thanks to a unique product enhancement. CBD hemp oil is pre-dissolved and embedded into microscopic liposomes to act as an efficient delivery method, since they’re quickly absorbed through a cell wall. In other words, just a few sprays under your tongue and you’ll feel the effects of CBD faster than any other tincture on the market.
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.
So. According to the Controlled Substance Act definition itself, certain parts of the cannabis plant are clearly illegal, while others fall into a grayer area. One of these – for the most part – is CBD extracted from the “legal” parts of the cannabis plant, and non-marijuana industrial hemp plants, which, as defined by Section 7606 of the Farm Bill are cannabis plants with less than 0.3 percent THC.
NuLeaf Naturals CBD oil tinctures are all full spectrum; it is 100% organic and never made with herbicides, pesticides, or chemical fertilizers. The brand offers a full spectrum pet CBD oil tincture, as well. NuLeaf Naturals offers free shipping to all 50 states; the brand’s products are also sold in more than 1,000 retail locations across the country.
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.”
High-potency CBD oils are most suitable for people experiencing strong, insomnia, chronic aches and pains, anxiety/depression symptoms, and other conditions that necessitate stronger effects. Our top pick for this category is the Lab Grade CBD Oil from Spruce, which comes in a 30mL bottle with a concentration of 2,400mg. Each full dropper of oil contains roughly 80mg of CBD, which can be an effective dose for those with severe discomfort or symptoms.
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).
While no one can answer this question with absolute certainty, recent studies indicate that CBD might have no negative side effects at all. Until research proves otherwise, the legal status of Cannabidiol is safe and will remain unchanged for the foreseeable future. Therefore, it seems that you can safely consume CBD without worry as long as it contains only traces amounts of THC (like CBD Supplements made from hemp not marijuana).
After two decades of experience in the hemp industry, Paul Benhaim founded Elixinol – ostensibly, as the company’s website states, to “[manufacture] and [provide] the highest-quality CBD oil and hemp extracts in the world.” And so that CBD oil users can be assured of that quality, Elixinol extensively tests its extracts and provides certificates of analysis for its products that are available to view at a click. The manufacturer’s wares have even received a “stamp of approval” from The Realm of Caring Foundation, a Colorado-based non-profit and advocate for cannabinoid therapy research and education. Those wanting to assess Elixinol’s extracts for themselves can choose from its range of oral tinctures – with potencies of 300 mg, 600 mg and 3,600 mg – as well as topical balms and capsules. Plus, the company gives 5 percent of the proceeds from every sale to charity – so buyers may not only feel good after their purchases, but they’ll do some good, too.
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