Lisa Hamilton, a jeweler and doula in Brooklyn, NY, knows about the side effects. She recently tried CBD for the shoulder pain that plagued her five years after an accident. Her doctor certified that she was in chronic pain, which under New York State law allowed her to buy from a state dispensary. One Friday, she swallowed two 10-mg capsules, the amount recommended at the dispensary, then took another two on Saturday. “By Sunday, it felt like I’d gotten hit by a truck. Every muscle and joint ached,” Hamilton says. She cut back to one pill a day the following week, but still felt hungover. She stopped after that.
Don’t let the name confuse you. CBD oil comes in many shapes and forms besides the traditional oils that we’ve highlighted here. CBD tinctures are the most popular type of CBD oil, because they tend to have more potent concentrations and offer high bioavailability (e.g. more CBD gets absorbed through your bloodstream when you apply it beneath your tongue as a tincture). Plus, users typically begin to feel the effects within minutes.
Historically, hemp could legally be grown and cultivated for academic research purposes only. However, the legality of hemp growth has changed in the past year. In April 2018, Sen. Mitch McConnell of Kentucky introduced the Hemp Farming Act of 2018, a piece of legislation that proposed legalizing all hemp products at the federal level. The act was incorporated in the 2018 United States Farm Bill, which passed in both the House and Senate in December 2018. Per the farm bill, industrial hemp will be descheduled as a federally controlled substance.
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.

This means high doses of CBD could significantly decrease the metabolization of cocaine. In fact, a study done on mice found exactly that 11. But what they also found was that CBD only significantly decreased the metabolization of CYP substrates like cocaine, when taken in extremely high doses off 30mg/kg. Such a high CBD dose far surpasses the currently maximum recommended dose of 1500mg/day.
But because all these products are illegal according to the federal government, cannabis advocates are cautious. “By and large, the federal government is looking the other way,” says Paul Armentano, deputy director of the Washington, DC–based National Organization for the Reform of Marijuana Laws (NORML), but until federal laws are changed, “this administration or a future one could crack down on people who produce, manufacture, or use CBD, and the law would be on its side.”

There’s no definite amount that’s appropriate for everyone, but the ratio of CBD to THC will indicate how psychoactive the product is and if it’s legal in your state. The more CBD compared with THC, the less of a high, and vice versa. “Managing psychoactivity is key to successful cannabis therapy,” says Lee. “Amounts should be made clear on the label and lab-certified so people know what’s helping them and what’s not.”
This is a confusing one for many people. "A lot of brands don't do a good job of clearly instructing their consumer on the dosing," says Chris Roth, CEO and co-founder of Highline Wellness. When thinking about dosing, also consider whether your CBD is full-spectrum or isolate: Full-spectrum could include other cannabinoids like cannabidivarin or cannabigerol (this is important, since "there's something called the 'entourage effect' when all together, they're more effective than any one of them alone," Roth explains), while isolate is 100% CBD. "Some people might only need 10 milligrams of full-spectrum CBD, but with isolate, even taking 80 or 100 milligrams might not have the same effect," he says.
If you are new to the world of CBD, it is definitely best for you to start with a lower dosage and work your way up from there. Some of the tinctures listed below have as few as 240mg of cannabidiol per bottle, while others are as high as 4850mg. While stronger isn’t always better, we appreciate those brands that have different options available to address different needs. Also, keep in mind that while a lower dose can give you more control over the amount you consume, a higher concentration is usually more cost effective. Higher concentrations will also contain more beneficial cannabinoids.
Sabaidee’s high potency CBD oil is made with just four simple, natural ingredients: CBD-rich hemp extract oil, MCT oil from coconuts, peppermint oil, and stevia leaf extract. The peppermint and stevia give this CBD oil a sweet and minty taste that’s not overpowering. Each product batch is tested by an independent third-party laboratory for purity and potency. And if you like the sound of Sabaidee’s CBD oil but are looking for a lower potency option, low and moderate potencies (8.33mg and 33.5mg per serving respectively) are also available.
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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