Oligo Blacklight Smart Developer 40 Vol

Must be mixed with a Blacklight Lightener or Powershade.
It is specially formulated to provide perfect consistency of final mix
To deliver optimal lifting and to facilitate application.
The Blacklight developers ensure consistent and reliable results with each application.
Use with all Blacklight Lighteners and Blacklight Powershades
Follow instructions and mixing ratios on their packaging.
**Do not use metal tools.

Available in 20 and 40 volume - 120 ml