Hemp CBD is completely different from cannabis CBD. Hemp also derives from the Cannabis sativa L plant, and while it also contains THC, it contains it in volumes that are less than 0.3% by dry weight. Some governments, including the US, regulate the concentration of THC and permit a specific variety of hemp (called industrial hemp) that is bred with an especially low THC content. This is the reason why, when you type into Google “CBD oil for Sale”, you get hundreds of companies trying to sell you their products – according to most all of them, CBD oil from industrial hemp is 100% legal to sell online and ship to all 50 states.
There are a number of possible side effects to using CBD oil, such as fatigue, dry mouth, lightheadedness, hypotension, and impaired motor functions. However, when used in moderate amounts, most people do not experience these side effects, and none of them are known for being fatal or particularly dangerous. More than 20,000 studies have been done in the past 15 years on cannabis, hemp, and cannabinoids, and the results have been overwhelmingly supportive of the therapeutic potential and viability of CBD oil. That being said, some people should be cautious before using this powerful oil.
Currently, the only CBD product approved by the Food and Drug Administration is a prescription oil called Epidiolex. It's approved to treat two types of epilepsy. Aside from Epidiolex, state laws on the use of CBD vary. While CBD is being studied as a treatment for a wide range of conditions, including Parkinson's disease, schizophrenia, diabetes, multiple sclerosis and anxiety, research supporting the drug's benefits is still limited.