O&M CØR.color.rn Resistant Natural Permanent Color is designed specifically for resistant, hard-to-cover, grey hair. The new formula uses Clean Colour Technology and is still completely free from Ammonia, PPD, and Resorcinol. The Resistant Naturals series includes 6 natural shades and uses an altered molecular delivery to manage stubborn hair cuticles. It is formulated with a higher alkaline pH and a more dense pigment load to force maximum penetration into tighter, hard-to-cover gray and white hair cuticles.
Unlike standard O&M CØR.color tubes which mix at 1:1.5, the Resistant Naturals shades utilize a strict 1:1 mixing ratio with developer to ensure absolute coverage saturation.