Yeah I thought it a bit strange too. I do have an oily scalp. Didn't think it'd seep through to the hair though. And I don't use scalp protector. You may be right. The only thing is that the reason I don't use it is because I break out in a rash when I do. I thought it was the glue and tape, but when I started attaching without the scalp protector, I never broke out again. What should I do?