Madison Reed® Mr.™ Hair Color for Men should be left on the hair for a minimum of 15 minutes for the color to fully develop. Set a timer after you are done applying. If more coverage is desired, the color can be left on an additional 5-10 minutes. The longer the color is left on, the more gray will be covered and the darker the result will be. Do not leave the product on for longer than 30 minutes.
