Discover Koleston Naturals products and enjoy strong, consistent, healthy-looking color that lasts for 6 weeks. This product guarantees you complete coverage of the gray color from the roots of the hair to the ends, even with the most resistant gray hair. Koleston Naturals products have a special system from Wella laboratories that contain powerful color pigment resources and a nourishing serum with chamomile extract for blonde hair, cinnamon extract for brown hair, and pomegranate extract for red hair.