I just attended a class on Schwarzkopf's new 10 minute haircolor called Igora10. My salon is now offering this new innovative permanent haircolor! It works by Amino Acid Carrier Technology! (much smaller molecules; quicker absorption into the hair; even processing; no worries about demarcation lines)
The models' hair had incredible shine and good coverage for 10 minute application; 10 minute development. White/Grey resistant hair may need 15 minutes processing time and/or some heat. The "Speedlift" Blonde colors are not recommended for hair that is over 50% grey. This young model was a Speedlift at the roots with an eleven series. (11/0 plus 11/2) 
The best candidates for Schwarzkopf's newest haircolor Igora10 are those with average density and/or short hair. The haircolor must get applied within 10 minutes and processed in 10 minutes or it may deposit two shades darker. So thick, long hair is not a good candidate for this type of haircolor because of the application time limit unless it is partial highlights service. It is hard to apply haircolor through a full head of long, dense hair in ten minutes!
The Schwarzkopf Education team completed eight cut/color models within four hours plus lunch break! The models' hair felt fantastic after the color service! The cuts were all edgy!
