Until 2017, products containing cannabidiol marketed for medical purposes were classed as medicines by the UK regulatory body, the Medicines and Healthcare products Regulatory Agency (MHRA) and could not be marketed without regulatory approval for the medical claims. As of 2018, cannabis oil is legal to possess, buy, and sell in the UK, providing the product does not contain more than 0.2% THC and is not advertised as providing a medicinal benefit.
Think of the primary difference between hemp oil and CBD oil in the same way that coffee beans differ from pure caffeine extract. Hemp oil includes over 100 cannabinoids that are found throughout the hemp plant—cannabidiol is just one of these. When you purchase pure CBD oil, you are purchasing an isolated compound that is derived from hemp oil. We have a whole post dedicated to the characteristics of this particular compound available for you to read more.
Since the 1960’s, medical research has collected research supporting the safety of CBD. Typical doses of 10mg to 100mg a day show no negative effects. Even one study where patients took 1,280 mg a day did not see a problem. The director of the National Institute of Drug Abuse has stated that CBD oil is safe, and recently the FDA approved CBD oil for use in children with epilepsy.