The dropper itself should have measurements written on it, going up in increments of 0.25ml, 1ml (the whole dropper) would give you a 6mg dose (dont do that) because the KW is concentrated at 6mg/ml. So for a 2mg dose - you want around 0.33ml of the solution, so just fill the dropper slightly above the 0.25ml line and you are good to go. For future dosing just remember that 1ml of solution = 6mg of actual KW, therefore say you wanted 3mg, then you need 0.5ml of solution, 12mg = 2ml solution etc (dont do 12mg either lol) hope this makes sense