Give free rein to your creativity even when you dye your hair. Wella Professionals Koleston Perfect ME+ Special Mix is una a professional permanent hair dye that allows you to achieve a distinctive, fashionable look and gives your hair a color that doesn't go unnoticed. In addition, the dye's formula is enriched with the innovative ME+™ and Pure Balance™ technologies to reduce the risk of allergic reactions and hair damage during the coloring process.