Discover Koleston Naturals and enjoy a strong, consistent, healthy look lasting for 6 weeks. This product guarantees full coverage of the hair from the roots of the hair to the ends even with the most resistant hair. Koleston Naturals has a special formula from Wella Laboratories, which contains strong color pigment resources and a nourishing serum with a chamomile extract for blond hair, a cinnamon extract for brown hair and a pomegranate extract for red hair.