On wet hair, apply a quarter size amount of shampoo and gently massage into lather. Rinse. Repeat, leaving lather on for 2 to 3 minutes. Rinse thoroughly. Follow with Phytomillesime Color-Enhancing Mask and Phytomillesime Color Protecting Mist for optimal results. May be used 2x to 3x a week alternating with a maintenance Phyto Paris routine.