Choosing the right CBD oil is above all about ensuring its quality. Some main information, to look for on the label, allows you to be sure: CBD hemp extract from natural agriculture (free of GMOs, pesticides, fertilizers, heavy metals, etc.) Without THC (the authorized limit within the European Union is 0,3% THC in the plant) Quality vegetable oil (organic hemp or MCT oil extracted from coconut, for example) cold extraction, ideally CO2 supercritical (avoid extractions with solvents which retain traces of them in the finished product and hot extractions which alter the properties of cannabinoids) Possibly other cannabinoids, as needed (CBN to relax and sleep better, CBG for muscle recovery and relaxation, CBC for skin problems and joint pain) These simple elements make it possible to identify serious marks. Within the same range, there are generally several concentrations. This is the second aspect of choosing the best CBD oil for your particular needs. The best concentration is not necessarily the strongest. If you are new to the effects of cannabinoids, start with a low concentration (5% or 10% for example). Over time and when you know your tolerance to CBD well, you can eventually change to a average concentration (15% or 20%). Finally, for pain or other demanding needs, and only after testing lower doses, you can turn to the most important concentrations (30% in particular).