Christophe Robin Shade Variation Mask Ash Brown 250ml is a color-depositing treatment designed to refine brunette tones while nourishing your hair. This 250ml jar delivers a stain-free, buildable ash brown that neutralizes brassiness and keeps your cool shade vibrant between salon visits.

How it works is simple and powerful: the mask releases pigment that deposits a cool, ashy brown on the hair shaft, counteracting warm undertones and unwanted orange or red hues. It’s not a dye replacement—it's a targeted toning treatment that refreshes color, smooths the cuticle, and leaves hair looking more even and radiant with each use.

• Ideal for brunettes and ash-toned hair seeking a crisp, cool finish
• Great for color-treated hair that tends to warm up or go brassy over time
• Suitable for natural gray or salt-and-pepper hair that desires a softer, cooler appearance
• Progressively builds tone, so you can control depth without over-darkening

What makes it stand out is the combination of color-depositing pigments with conditioning care. It goes beyond a simple toning wash by delivering measurable, lasting neutralization of warm tones while helping to smooth and hydrate the hair for a shiny, healthier look.

1. Wash and towel-dry hair, removing excess water for even application.
2. Apply the Ash Brown mask from roots to ends, distributing evenly with a comb.
3. Leave on 5–20 minutes depending on how cool you want the undertone to be, then rinse thoroughly.
4. Follow with your regular conditioner or leave-in treatment; use 1–2 times per week or as needed to maintain the ash-brown shade.

For best results, pair this shade variation mask with a color-safe routine to preserve tone and shine. If you’re aiming to reduce brassiness, extend the processing time gradually, then rinse to reveal a cooler, more uniform brunette. This 250ml formula is designed for ongoing use, making it a practical addition to routine color maintenance for home care between salon visits.