Important information refresh dark lengths

Refreshing dark lengths:

Lengths and dry ends always attract more pigment and colder pigments. You should always use a lighter color in lengths and ends to achieve the same shade and darkness on the hair. The drier the hair is, the more pigment it attracts. With 1.5% h2o2 you will achieve the darkest and densest color as it does not contain any form of lightening. For a lightening you should choose 3%, 6% or 7.5%.