Matrix Tonal Control are a predictable acidic gel toner that gradually darkens as it oxidizes for real time visible oxidation for ultimate post-lightening control. The smooth gel allows for seamless application and has long lasting colour results.

Features:

• Colour can last up to 24 washes
• Acidic technology provides no base shift
• Pre Bonded with exclusive Bond Protecting Concentrate
• Ammonia free and Vegan