I tried the biolage shampoo and conditioner for color treated hair, but it irritated my scalp, just like every other shampoo. I always get this bulid up on my scalp that my stlyist attributes to having dry scalp, so she reccomended using Head and Shoulders dry scalp formula shampoo + conditioner, and it works like a charm! I also do a tea tree oil scalp treatment about once every 2 weeks. I condition with whatever I want, usually redken color extend or a deep treatment. I was my hair about every 3 days. My stylist warned me to space out washings as much as possible since I have thick hair with a tendancy to get dried out easily. My hair is about 3 or 4 inches past my shoulders in long layers, brown with red and carmel highlights foiled in. It is pretty high matinence, but I am all about changing my hair color! As for styling, I usually blow dry straight and then flat iron my bangs and a few pieces around my face.