Professional Hair Developer 30 Vol.

Prevents hair from damage during Coloring. Mixes easily with any haircolor or lightenerr into a creamy consistency with easy spreadability.  Ideal for achieving the lightest results in a single process application

• 3% =10 Vol for Gray Hair Coverage (White Hair
• 6% = 20 Vol for Gray Hair Coverage (White Hair
• 9% = 30 Vol for Natural Hair
• 12% = 40 Bol for Pastel or Bleached Hair