A demi-permanent alkaline 5 minute fast toner. Benefits Gel-cream, foaming texture spreads easily Allows fast and even application that tones in up to 5 minutes Perfect for express pre-toning for clients with vivid hair color Neutralizes unwanted warmth during a corrective service Not intermixable with traditional Color Sync shades How to use Apply quickly to towel-dried hair at the sink. Process for up to 5 minutes until desired result are achieved. Rinse hair well and condition if necessary before applying final color. Not intermixable with traditional Color Sync shades. Mixing ratio: 1:1 (90 ml color + 90 ml developer) Development time: 2-5 minutes Developer: 2,7% / 9 Vol Matrix Color Sync Activator