True Colour has two hydrogen peroxides to achieve the best results: • 5 vol. used for toning • 20 vol. is used for permanent coloring and gray hair covering. Bottom coloring: Mix the desired amount in a plastic bowl with brush where about 50 ml of dye is consumed for a bottom color and half a bottle of the hydrogen peroxide. When finished, close the tube and hydrogen peroxide bottle and use again. Open tub/bottle has a minimum of 12 months shelf life. With True Colours 41, different shades of colour are given endlessly with combinations and you easily create your own recipes by mixing different shades. Need help? — talk to our free hair dye support to help you reach salon's close results or scan the QR code that takes you to our True Colour page where you find a wealth of information, instructions, colour map as well as simple instructional video footage how to do when you dye your hair — all because you should be successful when using our hair dye.