20 Volume is a 6% H2O2 Processing Gel Developer for times when two levels of lift are needed. Processing time 30 minutes.
All J Beverly Hills Developers are specifically formulated to work with J Beverly Hills Colour.
20 Volume is a 6% H2O2 Processing Gel Developer for times when two levels of lift are needed. Processing time 30 minutes.
All J Beverly Hills Developers are specifically formulated to work with J Beverly Hills Colour.