40vol: Lightens hair with 3 or 4 shades. 30vol: Lightens hair with 2 or 3 shades. 20vol: one shade hair coloring, gray hair coverage or lightening with a shade. 10vol: darkening with a shade, coloring faded hair. If the hair needs to be lightened with more than 4 shades, we recommend the use of ultralight shades. Preparation: mix one part paint mixture with one and a half parts Singularity Oxivator in a non-metallic bowl. The mixing of the Ultralight shades is done in a different proportion: one part of the paint mixture must be mixed with two parts of Singularity Oxivator. First application: apply the prepared hair dye mixture, spread evenly on the hairs and ends of the hair and leave on for 10 minutes. At the end of the effect time, prepare the same hair dye mixture, apply evenly on the hair roots and leave on for another 30 minutes. To refresh color: apply evenly on hair roots and regrowth, then leave on for 30 minutes. At the end of the effect time, add a little lukewarm water, apply the mixture to the hairs and ends of the hair, then leave on for another 10 minutes.
