HEMP-BASED CBD VAPING OILS VS CANNIBIS-BASED VAPING OILS
As you might guess, CBD hemp oil is extracted from the flowers and leaves of the hemp plant (NOT the seeds), using some sort of extraction process (preferably supercritical CO2). Most CBD hemp oils you see for sale are extracted from industrial hemp, which is specifically bred for its tough fibers, nutritious seeds, and CBD-rich flowers.
The key point here in terms of legality is that industrial hemp produces significantly lower amounts of THC - which means that hemp-based CBD vaping juices are available in most states. While many have claimed that CBD hemp oil is less effective than CBD cannabis oil, this is far from the truth. Numerous studies have shown that CBD hemp oil is a good source of vitamins and minerals, in addition to possessing almost all the health benefits of "regular" cannabis (including depression, anxiety, and pain).
CBD that is derived from hemp is legal in most states without a prescription - a major boon to patients who would otherwise not have access to any form of CBD vape oil.