When ordering our full-spectrum CBD oil tincture, it is essential to know how to dose. We have different sizes from 250mg, 550mg, 1000mg, 1500mg. The size of the bottle is 30ml, and the eyedropper is 1/ml. To find out how much CBD oil is in a full eyedropper take 30 divided by the mg of CBD. Example 1000mg oil tincture 30/1000mg equals 33.33mg of CBD in a full eyedropper approx.