How Many Levels Will 20 Volume Bleach Lift?
The number of levels 20 volume bleach can lift depends on the natural hair color and underlying pigments. Generally, 20 volume bleach can lift 2-3 levels on natural hair color, and up to 5 levels on lighter hair colors or previously lightened hair with underlying pigments. However, it’s always best to perform a strand test beforehand to determine the lift needed and avoid over-processing or damaging the hair.