z.one concept™ USA is the exclusive representative of milk shake, No Inhibition and Simply Zen brands in North America. These three product lines are part of the z.one concept™ family, a young, innovative and dynamic Italian brand offering professional hair and beauty products worldwide. From shampoos and conditioners to color and bleach, these product lines offer a solution for every scalp and hair need. z.one concept™ products make great hair easy to achieve while offering everything you need to look amazing 365 days a year; from never-fail styles to solutions for frizz, limp tresses, dull color, hair loss and more!