You might want to look into shampoo bars. Sometimes when the scalp is over shampooed, the stripping caused by shampoo causes the scalp to over-compensate with oil production. see here for the sciencey stuff: http://theshaveden.com/forums/threa...-wanted-to-know-but-were-afraid-to-ask.28543/ Shampoo bars can mediate the over-production b/c they are not (usually) detergent-based and so do not over-clean.
Thanks for the recommendation. This is actually the first time I have heard of shampoo bars. Will definitely check it out.
I tried no poo and using a shampoo bar and it made my scalp itch. Im sure its great for some but not for me.