Health and Beauty Coloration WELLA professionals Koleston Perfect Me + Special Blonde 60 ml 12/89 Our purest color to date,with ME + technology. Pure and balanced color results withnatural depth and brightness. ME +, up to 60 times less likelyto cause a new allergy to hair coloring Less capillary damage coloration after coloration. Simple mixing ratio of 1: 1. Up to 100% coverage of gray hair; up to 3 levels of rinsing.