It is a chronic issue in the hemp CBD industry that people mislabel and don't put the actual potency they claim to have on their bottles.
One of the things we've seen a lot in the industry is people labeling their bottles with the amount of "hemp oil", but not the amount of active CBD.
An example would be someone with a 500 mg bottle putting 500 mg of "hemp oil" in their bottle, but that hemp oil is only 25% CBD content, therefore there is actually only 125 mg of active CBD in the bottle, yet they call it "500 mg".
Below is our Certificate of Analysis for our CBD content on our 500 mg bottle.
NOTE: There are 30 ml in our 500 mg bottle. The lab test below is the amount of CBD in 1 ml so you have to multiply 17.20 mg/ml times 30 to get the amount in the whole bottle. That math comes to 516 mg per 30 ml. Our 500 mg hemp oil extract for this batch had 516 mg.