Toning unlike dyeing or lighting is more gentle for the hair. Dye like envelops the hair outside and washed four or eight weeks. When toning the hair without problems dyed over with gray, if it is not more than 50% of the volume of hair. The hair can lighten the three colors or make a darker, it all depends on the desire. There are intensive and gentle toning Goldwell products. Dyes for intensive toning does not contain ammonia, but only slightly oxidizing substances. Color while holding up to two months. With gentle toning dye lasts about four weeks, and since it contains no nutrients, it is possible without damage to the hair to repeat the rendering.