Shortdub78 is right, a chelating shampoo will take of that, if the no lye is more gentle don't switch!. A lye relaxer is more stronger and that's why some do a protein treatment right after relaxing or a week later to get back the strength they lost. With a no lye relaxer it coats your hair with mineral deposits and you can't just rinse that off with plain water or regular shampoo(some people have hard water anyways and that deposits mineral on the hair as well so that's why you can't just rinse it off with water) and mineral deposits actually attaches itself to your hair and only chelating shampoos can remove these deposits. So next time you use your no lye relaxer you just neutralize after and then chelate. Some will say that doing both will damage your hair but it doesn't, not rinsing the deposits will. And just deep condition very well after and if you can do a over night treatment, its that simple. I use no lye as well