I use Neals Yard shampoo and by Shu Uemura treatment mask as a conditioner, washing approx once every 5 days. The mask is really rich and smells incredible - if I use anything lighter my hair seems unconditioned. It is very expensive though and I don't know that it does anything for my waves (they become curls if styled right so I don't know what to class them as). I know there are curl-specific products but do they really make a difference?