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.

Quality CBD oil comes from a quality source. CBD oil can be extracted from the hemp plant in a variety of ways. The safest, and most efficient methods, use carbon dioxide or ethanol as a solvent to separate the CBD from the hemp plant. All of the tinctures below are extracted from pesticide-free hemp grown on local farms in the United States, all of which are registered with their state’s industrial hemp pilot program, or organic-certified farms in Europe.


In addition to acting on the brain, CBD influences many body processes. That’s due to the endocannabinoid system (ECS), which was discovered in the 1990s, after scientists started investigating why pot produces a high. Although much less well-known than the cardiovascular, reproductive, and respiratory systems, the ECS is critical. “The ECS helps us eat, sleep, relax, forget what we don’t need to remember, and protect our bodies from harm,” Marcu says. There are more ECS receptors in the brain than there are for opioids or serotonin, plus others in the intestines, liver, pancreas, ovaries, bone cells, and elsewhere.
Technically speaking, its THC—the cannabinoid that gets you high—which is illicit. When you take a drug test, the aim is to detect THC in your body, not “cannabis.” If you possessed weed without any THC in it, technically you wouldn’t be in violation of the law. Because “weed” without THC has a different name: hemp. And the rules governing hemp are quite different from the restrictions placed on cannabis.
Spruce was founded by Tony Spencer, who had a clear mission for his company—give people access to safe and effective lab-grade, hemp-based CBD. Spencer realized that many other CBD oils on the market were low-potency and simply didn’t work. “We have a lot of customers in pain who have wasted money on CBD products in the past that didn’t work for them,” remarks Spruce on their website.
This tincture is processed using the brand’s signature ‘Gold Formula,’ a full spectrum blend of terpenes, phytocannabinoids, fatty acids, and vitamin E. The drops are offered in three concentrations: 250mg in a 1-oz. container, or 750mg and 1,500mg in 2-oz. containers. Plus CBD Oil recommends taking half a dropper, or 15 drops, per dose. The drops are vegetarian-friendly and free of GMOs, gluten, and glycerin.

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.

According to the 4 Corners Cannabis website, co-owners Justin and Brian Jasiewicz have 30 years of cannabis growing experience between them. That expertise gives them the know-how, the company claims, to make sure that the entire production process of 4 Corners’ CBD oil is run correctly – all the way from field to store. And while that may result in products that are a little more expensive than equivalents on the market, there could be room for that to change if enough people lobby for lower prices; 4 Corners, for one, emphasizes that it “[listens] to the demands from [their] customers to better serve them in the future.” Meanwhile, the company makes picking the right product that little bit easier through its innovative labeling. This makes it plain at a glance for potential purchasers to see which of the 4 Corners range are designed to improve mental well-being and which, by contrast, are targeted at those with active lifestyles.
Water soluble CBD oil products are formulated using a special process to break down the CBD molecules into smaller particles. In theory, “water compatability” would produce higher absorption rates and faster-acting effects. Although it’s a popular buzzword in the CBD industry, we have yet to see any independent research studies that prove they are better than traditional oil-based tinctures.

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.
The reason so many people are interested in cannabis products that don’t make them high, proponents say, is that CBD helps with everything from pain and nausea to rheumatoid arthritis, cancer, Crohn’s disease, and dementia. CBD is anti-inflammatory, anti-anxiety, antibacterial, immunosuppressive, and more, says Joseph Cohen, DO, a cannabis doctor in Boulder, CO.

CBD, or canabidiol is an amazingly useful plant compound that is extracted from the cannabis plant. With volumes of medical science now at its back, this compound has been used effectively for a wide range of needs. These particularly wide-ranging applications are the result of its being a part of the “pleiotropic sedate” group. Compounds in this group are especially unique in their ability to affect and travel along many of the typically closed atomic pathways.

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.
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