After reading about SLS being bad for hair I bought a small bottle of the Body Shop rain forest shampoo for coloured hair. I usually use Wella from the hairdressers but that has SLS in it. I've used the rain forest once so far and my hair looked a bit dull after. Is this normal and should I persevere? I like Liz Earle skin care so was wondering about her hair products too which are natural. Has anyone used this? Or is it better to stick to the hair salon stuff?