BENEFITS

• This hair developer activates color Precursors as well as lightens the natural color pigments of the hair.
• Available in three different strengths of 20 vol (6%),30 vol (9%) and 40 vol (12%) for different levels of lift.
• The Matrix 20 volume developer (6%) is used to lighten 1-2 levels, coloring level on level, darkening hair, and covering grey hair.
• The 30 volume developer (9%) is used to lighten 2-3 Levels.
• The 40 volume developer (12%) is used for lightening 3-4 Levels.