So I started this method of not shampooing in December and have loved the results. I just have a question about the oil build-up. Is there scientific evidence to support the theory that shampooing every day causes your hair to release extra sebum?
No. I've come across a couple of articles that claim the idea is bullocks.Here's one of them:http://www.health.com/health/gallery/0,,20788089,00.html#shampooing-less-won-t-make-you-less-greasy-0
Personal experience? I do get to stretch the time between washes longer. However, I have no idea whether that's caused by not using shampoo or all the other no poo rituals (f.e. stritching and preening)