I have recently moved to a sulphate free shampoo (L'Oreal Paris Elvive Glycolic) and it has made my head itch with flakiness. The shampoo and conditioner are making my hair itself in the best condition it has ever been so I want to stick with it. Is there a reason that my head it getting itchy and, other than change back to a shampoo with sulphates in, what can I do to help? Any advice would be really helpful :)