The founders of the high-end, celebrity-frequented Warren-Tricomi salons ––colorist Joel Warren and stylist Edward Tricomi––have assembled the new Strength Collection of shampoos and conditioners for a variety of hair types, as well as a unique Strengthener formula that is used in between the shampoo and conditioning steps. Known as the close step, this middle step is designed to close the cuticle of each strand and return hair to its healthiest, shiniest state. The new Strength Collection ...