Cross-cultural psychiatrist Arthur Kleinman contends that the Western bias is ironically illustrated in the introduction of cultural factors to the DSM-IV. Disorders or concepts from non-Western or non-mainstream cultures are described as "culture-bound", whereas standard psychiatric diagnoses are given no cultural qualification whatsoever, revealing to Kleinman an underlying assumption that Western cultural phenomena are universal.[147] Kleinman's negative view towards the culture-bound syndrome is largely shared by other cross-cultural critics. Common responses included both disappointment over the large number of documented non-Western mental disorders still left out and frustration that even those included are often misinterpreted or misrepresented.[148]
It’s hard to weed out which are legitimate concerns and what is overblown, given the lack of objective clinical trials testing the relative effectiveness of the two sources of CBD. While skepticism towards the effectiveness of hemp-derived CBD seems to be prevalent in today’s market, the results among cannabis community members surveyed suggest that more research is necessary to come to a clear conclusion as to how it stacks up against marijuana-derived CBD and whether this skepticism is justified.
*The legal landscape around CBD is unclear and changing rapidly both at the Federal and State level. The information on our website and any other communication regarding legality which you may receive from any representative of Green Roads is for informational purposes only and not for the purpose of providing legal advice. You must make your own judgment regarding whether you should purchase CBD in your jurisdiction. You should contact your attorney to obtain more specific guidance.*

The legal problems occur once the extracts contain higher percentages of THC, or when they’re made from cannabis plants that are no longer considered “hemp” (so basically high THC plants). Products with these extracts might be in violation of the United States Controlled Substances Act (US CSA). This is when laws regarding specific states or countries will apply.
The answer, unfortunately, is that there has been no true and universal consensus among professionals in the cannabis space – including among CBD advocates – as to how the different CBD derivatives compare and whether and if CBD hemp oil is, in fact, as effective as marijuana-derived CBD. Understandably, the matter isn’t clear among cannabis consumers either, most likely leading to the mixed signals seen in the study.
There are concerns that a handful of less-than-reputable companies are tarnishing the industry as a whole. For years, the FDA has been sending warning letters to companies selling CBD while making unsubstantiated health claims. According to the FDA, one company had claimed on its website, “Scientific research by doctors have shown it (CBD) actually kills cancer cells and provides a protective coating around our brain cells.”

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