The formula includes three conditioning components that address common side effects of oxidative dyeing. Rice protein is a film-forming protein that adheres to the hair's outer cuticle layer. By smoothing overlapping cuticle scales, it reduces light scattering — which the eye perceives as increased shine — and helps the newly formed pigment appear more even across the surface.
The fixing balm supplied for after-rinsing contains keratin and vitamins. Keratin is a structural protein naturally found in hair; the cosmetic version deposits on damaged areas of the cuticle, temporarily filling gaps and reducing the rough, straw-like feel that can follow the alkaline opening of the cuticle during coloring. The vitamins (typically panthenol and vitamin E derivatives in such balms) add humectant and antioxidant support, helping the hair retain moisture and feel softer.
Practical aftercare: use the fixing balm immediately after rinsing the dye, leave it on for the recommended time (usually 3–5 minutes), then rinse thoroughly. For the first 48 hours, avoid shampooing — this lets the cuticle fully close and the oxidative reaction complete. Going forward, a sulfate-free shampoo and a weekly protein-rich mask help maintain the smoothed cuticle. Minimize heat styling and always use a heat protectant; colored hair is more prone to moisture loss and breakage at the ends.