Nowadays there are many different procedures for the production of CBD oil. All CBDology® CBD oils are based on a method called “supercritical CO2 extraction”. During this relatively complex method, the cannabinoid is extracted extremely gently with the help of carbon dioxide from the solid components of the hemp plant. The result is an extremely pure end product of high quality. Experience has shown that this process yields the best CBD oil. We therefore say: Buying CBDology® 8% CBD oil means buying quality.