When I first started doing these flushes I wondered where the oil was going too. It would seem that I did absorb it all the first few times. My skin even got oily for a few days. I've done 6 now and the oil now comes out looking like light colored feces surrounding the stones. It's a little waxy too but doesn't look a bit like the stones. Apparently my body no longer needs that oil or has decided to throw it all off when I do these now. But the most important thing is to keep doing them if you have or need the health benefits.