Additional clarification to the law came in 2018, with an updated version of the farm bill. The 2014 law set the foundations for hemp-based products to emerge, but there was still some confusion as it did not specifically mention CBD products. This new version of the farm bill keeps the same restriction on THC, but makes it perfectly clear that CBD vape juice and all other hemp-derived products are legal throughout the United States.
So how does it work? Scientists are still working out the details of how CBD works to calm the mind, though it seems that its effects on serotonin and glutamate production are part of that equation. This comprehensive 2015 review of scientific literature on CBD as a potential treatment for anxiety concluded that CBD has considerable potential and strongly recommended further study. cbd oil