While there’s no reason you couldn’t use it as a supplement, it’s not labeled as such, so it may not be subject to the same purity testing as a bona fide hemp oil supplement. The bottle is brown amber glass with an eyedropper on top, as is customary for oils like this, but the packaging also includes a facial sponge to underscore the recommended cosmetic use of the hemp seed oil.
In the United States, CBD itself is not specifically listed in the United States Controlled Substances Act like the psychoactive compound, tetrahydrocannabinol (THC). The US government, which specifies which parts of cannabis plants are prohibited, excludes hemp’s “mature stalks” and “oil or cake made from the seeds” and “sterilized seeds” from its definition of “marihuana.”
For decades, laws had grouped hemp and marijuana in the same category, conflating both plants and confusing the public. All of this changed in 2018 with the passing of the Agriculture Improvement Act. Also known as the 2018 Farm Bill, the new legislation removed hemp from the federal definition of marijuana and reclassified it as an industrial commodity. In other words, the bill made hemp legal at the federal level and established it is to be regulated by The Department of Agriculture rather than the Drug Enforcement Agency. As a result of the bill, hemp and hemp-derived products are completely legal nationwide, though individual states may still impose minor restrictions.
Outside of those four states, consumers must put their trust in the manufacturer. Sometimes that’s warranted, and sometimes it’s not. In 2016 and 2016, the FDA ran tests on several CBD products and found that many of the products had far less CBD than advertised, and in some cases none at all. You can find those test results here for 2015, and here for 2016. (These FDA tests were done as a one-off project. CBD products are not approved by the FDA for the prevention, mitigation, or treatment of any disease or condition.)
Los Angeles-based PureKana stresses that it extracts the CBD oil for its products from hemp plants that have been cultivated without the use of herbicides, pesticides or other agro-industrial chemicals that may impact upon crops. What’s more, the company states, no solvents go into the extraction process other than carbon dioxide. And to further put potential customers’ minds at rest, PureKana presents the results of third-party testing of its CBD oil tincture on its website – a welcome nod to transparency. That tincture can be found in the company’s own blend of CBD oil drops – the three varieties of which have elicited highly complimentary reviews from users – as well as its capsules and cooling topical ointment. Meanwhile, for anyone with a sweet tooth, PureKana’s CBD isolate-containing gummy bears may just do the trick.