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DescriptionOur purest color to date, with ME+ technology• Pure and balanced color results with natural depth and brightness• ME+, up to 60 times less likely to cause a new allergy to hair color ation*• Less hair damage Color ation after Color ation**• 1:1 single mixing ratio• Up to 100% gray coverage; up to 3 levels of rinsing* FOR PEOPLE NOT ALLERGIC TO COLOR BEFORE CAPILARS Although the risk of developing a new allergy is reduced, this risk exists and can be serious. Always have your stylist take an allergy test 48 hours before each Color ation.Strictly follow the safety instructions and consult www.wella.com/XYZ. If you've ever had some kind of allergic reaction to hair dyes, you shouldn't color your hair. ME+ is present in specific shades of Pure Naturals, Rich Naturals, Vibrant Reds, Special Blondes and Deep Browns of the Koleston Perfect brand.MODE OF USEMIX Recommendation Combine it with Welloxon Perfect for incredible high-density results.Koleston Perfect Base and Welloxon Perfect (1:1).Proportion of Special Blonde tones (1:2).Welloxon Perfect is the color combination of Koleston Perfect Base and Innosense, Illumina Color, Blondor and Magma that guarantees the optimal performance of the Color.Visit the individual product pages for recommendations and blending proportions specific to the Color product you're going to use.MIXING PROPORTION 3 levels of rinsing: 1 part Koleston Perfect, 1 part Welloxon Perfect 12 %2 levels of rinsing: 1 part Koleston Perfect, 1 part Welloxon Perfect 9 %1 level of rinsing/coverage of gray hairs with the same or darker depth: 1 part Koleston Perfect, 1 part Welloxon Perfect 6 %Special Blonde: 1 part Koleston Perfect, 2 parts Welloxon Perfect 9% for 3 levels of rinsing or 12% for 4/5 levels of rinsingApplicationPerfect for all hair color ation techniquesSAME DEPTH OR DARKNESS:Color throughout the head, first application: moistens the hair. Distribute the Root Color to tips and comb for even distribution.Acting time: - HEAT: 30–40 min / + HEAT*: 15–25 minRinsing:First step: First application throughout the head, mids and ends: comb to distribute it in media and tips.Acting time: - HEAT: 20 min / + HEAT*: 10 minStep two: Apply the Color blend to the root.Acting time: - HEAT: 30–40 min / + HEAT*: 15–25 min