Here is what my rats do... If it is dosed at 200mcg per ml/cc, then .5 cc in a pin = 100mcg's. Even more simple is: Each little little line on the pin = 20mcg's (there is 10 marker lines to the 1cc point... 200mcgs per 1 ML/cc) squirt into mouth from pin and there you go... Perfect doses. I dont trust that dropper either, but Just so you know 1 Pipette/Dropper = 1ML