Herbatint Permanent Haircolour Gel 4N Chestnut 170Ml

How to Use Herbatint Permanent Haircolour Gel 4N Chestnut 170Ml:

1. In a non-metallic bowl, mix equal parts of Herbatint color gel and the glycol developer until you have a smooth consistency.
2. Using a tinting brush, apply the at-home hair color mixture to dry, unwashed hair, starting at the roots and working through to the ends.
3. Leave to process for 40 minutes, then rinse hair thoroughly until the water runs clear and apply the included conditioner.