My daughter's blonde hair turns green and brittle from swimming in the pool. I was desperate and would try anything and everything from baking soda to ketchup to try to remove the green. I will now only use the Malibu Swimmers Kit. After lathering the Swimmers Natural Wellness Treatment crystals I place a wet washcloth over her hair and apply the hair dryer for a few minutes. The color of her hair changes dramatically! It even feels smoother. This product is amazing and worth every penny! Thank you!