Wella Koleston Perfect ME+ Pure Naturals is a permanent hair dye for professional and personal use. The 60 ml tube contains advanced ME+ technology that provides pure, balanced color results with natural depth and shine. The formula covers up to 100 percent gray hair and can lighten hair by up to three levels. A key feature of the ME+ technology is the reduction of the risk of developing new hair color allergies by up to 60 times compared to conventional permanent hair dyes. The product causes significantly less hair damage with repeated use and maintains hair structure over multiple coloring processes. The mixing ratio is simple at 1:1, with hydrogen peroxide needing to be purchased separately. This hair color is specifically formulated for individuals who are not allergic to hair dyes. Although the risk of developing new allergies is reduced, there remains a significant risk of allergic reactions. It is essential to perform an allergy test 48 hours before each coloring application and to follow all safety instructions carefully. The ME+ technology is available in selected shades within the Pure Naturals, Rich Naturals, Vibrant Reds, Special Blondes, and Deep Browns color families. For optimal color retention and hair care, complementary Wella Invigo products are recommended for additional care and color stabilization.