The first step to evaluate a CBD E-liquid is to make sure that it is in line with the requirements. In general, e-liquids must contain a high-quality hemp extract and a suitable carrier oil. CBD Life UK does this by using an isolated hemp extract and a propylene glycol/vegetable glycerin http://cbdeliquiduk54449.59bloggers.com/15720990/how-to-find-the-best-cbd-e-liquid