The modern world is bright, creative, and incredibly unpredictable. Not only girls, but also men are interested in their image. Una of the procedures that are increasingly popular lately is hair dyeing, and the brand Goldwell offers a hair dye developer that helps saturate the color and its extra longevity, serving as a guarantee for pigment transfer and, at the same tempo, protects the hair from excessively aggressive chemical attack. Thanks to the well-chosen formula and optimal consistency, the product mixes easily with the dye, allowing for quick creation of una mixture and achieving the desired result.|| Professional use. Mix the required amount of developer with the dye and apply the mixture to dry or damp hair. Mix with the dye in a 1:1 ratio. Apply to hair and leave on for no more than 5 minutes. Do not exceed this tempo as the result will be too intense.