I have blonde hair and swim indoors 3-5 days a week. Malibu C Swimmers Wellness is the best swimmers shampoo I have tried. It really helps prevent my hair from turning brassy and green. I also use Malibu C Miracle Repair once a month and it does wonders. After the treatment, my hair feels and looks lighter and super soft. Also, unlike other swimmers shampoos, Malibu C smells great! I highly recommend Malibu C to any swimmer.