Schwarzkopf Blondme Premium Developer 40Vol. 12% Oxidant 1000ml 4045787367393 Features: Provides maximum performance and care when used with BLONDME color products. In blonde applications - the bonds inside the hair strands may be damaged. As a result, the durability of the hair decreases and the hair becomes prone to breakage. New Bond Strengthening Technology- created to protect hair from root to tip. Highly effective Succinic Acid spreads into the hair during the oxidative process and forms a protective layer around the hair bonds. Thanks to this protection - the majority of the bonds are preserved throughout the process and the hair retains its strength and flexibility. Unique Bond Strengthening Technology containing highly effective Succinic Acid - integrated into superior performance BLONDME lightening, lightening and white covering formulas. Blondme Oxidant 2% - 7 Vol. 6% - 20 Vol. 9% - 30 Vol. 12% - 40 Vol. This Product is Listed with Character Media Integration Systems.