In Australia, CBD oil falls under the category of medical cannabis, so you have to jump through a few hoops to get a medical cannabis prescription.
Production of CBD oil is not the same around the world, and in some countries regulations and regulatory hurdles relating to industrial hemp are needed to produce the full range of CBD oils. Make sure you choose the best CBD oil by choosing products made from organic hemp. If CBD oils are made from home-grown hemp, you can be sure that they come from a regulated source and that your product contains significant amounts of CBD with a safe THC content.