"Permanent oxidative colors are the biggest hurdle for regrowth," explains colorist Romain. Why? They use oxidation: the developer lifts the hair cuticle to strip natural pigments and deposit synthetic ones, creating a lasting change. Shampoos fade the color over time, with these pigments fully dissipating after four to six weeks. You might assume waiting will reveal your natural shade—but no. Oxidized hair loses its natural pigments, becoming lighter than your roots and showing a clear demarcation line. Factor this in during regrowth.
To soften the contrast between colored lengths and emerging roots, apply repigmenting treatments regularly until fully regrown. Select shades that neutralize oxidized tones: for ashy reflections, choose golden or copper (leave on 5 minutes); for yellow/orange, use blue or violet iridescent formulas (10-15 minutes); for red/mahogany, opt for ashy brown (10-20 minutes). Use every three shampoos, paired with nourishing masks that blend direct pigments and hydration to revive shine in natural hair, which often looks duller than colored strands. Follow up with sulfate-free shampoos to preserve surface pigments.
Ideal for colors far from your natural base. A colorist can match your roots using permanent color to darken lengths or targeted bleaching to lighten them. For a seamless look, request 'veil' balayage—ultrafine, barely visible highlights. Permanent changes will fade, revealing slight demarcations. Maintain with salon direct colors (surface-deposited pigments that wash out after shampoos) or at-home repigmenting treatments.
4 Effective Products:
• Colors Mix, custom-made at Romain Colors XXVII salon, €38.
• Color Shader Treatment, Christophe Robin, €38 (5 shades).
• Nutri Color Creme, Revlon Professional, €12.60.
• Healthy Glow Hair Coloring Care, Farida b, €24.
Thanks to Christophe Robin, colorist and L'Oréal Paris creator, and Romain, founder of Romain Colors XXVII salon.
