Because according to a Leafreport, just 4 out of 22 CBD drinks that were analyzed had the actual levels of CBD that they were advertising. For the research, they used independent lab tests on 22 CBD drink brands on the market to tell how much CBD they actually contained. They were surprised by their findings because a lot of these brands seemed to be falsely advertising their claims, though some of it may have been done on purpose while others didn’t know better.