The way it was explained to me was that as long as that same volume of oils was taken in the same amount of time it would work out about the same. Not saying it "THE WAY" but "A WAY". IF you want precision then it's probably best to pull out what's needed from each bottle. My though was that if say all the amount were to be taken for say 4 week time. Then as long as I got it all in by 4weeks it would work out the same. But still injecting a set amount of the "cocktail" every so many days so that it was a steady and continuous amount entering the body if that makes sense.