Hello Ladies... I have a problem with getting my hair completely clean. No matter how much I rinse there is always product left in my hair. After a DC and washing that out, the lady at the salon says there is still oil in my hair. I wash and condition before I go to get my hair done, because I think I can do it better, but now I'm second guessing myself. My final rinse is always cold water is there any way to know that the product is completely out of my hair after washing?