It is the color with me+technology. Perfect, uniform and modern color results me+, reduces the risk of developing a new hair color allergy ** (** for people who are not allergic to hair dyes. Although the risk of developing new allergies is reduced , there is a risk of allergic reactions, which can sometimes be serious. Perform an allergy test 48 hours before each coloration. Strictly follow the safety instructions. If you already have allergic reactions to the coloration of the hair in the past no It must color. Me+ is included in certain nuances of Pure Naturals, Rich Naturals, vibrant red, special blondes and Deep Browns of the Koleston Perfect brand