OUR PUREST PERMANENT HAIR COLOR EVER WITH ME+ TECHNOLOGY Koleston Perfect is the first professional hair color brand to feature breakthrough technologies boasting: Pure, balanced color results with natural depth and shine. ME+ reduces the risk of developing a new allergy to hair color* (* FOR PEOPLE NOT ALLERGIC TO HAIR COLORANTS). Reduce the formation of free radicals for irresistible hair quality. Simple 1:1 mixing ratio. Up to 100% grey coverage. Up to 5 levels of lift. Special gloves must be worn during use. Add 1 tube (60 ml) of Koleston Perfect Me + hair dye and 60 ml of oxidant emulsion to the container. Mix everything well. Apply the mixture onto dry hair in the way you want. Leave on for 20-30 minutes and rinse thoroughly with warm water. To prepare a larger or smaller amount of product, the following ratio should be used: 1:1.