Figure 7. Micellar market benchmark and changes in red coordinate

a) (top) A micellar market benchmark may limit the overall ΔE but it does not protect specific shades, such as red, as the number of shampoos increases; (bottom) the structured shampoo is able to stabilize and deposit pigments to compensate for the loss of specific shades; b) Changes in the red to green coordinate a, caused by shampooing with water, using a market benchmark and a structured shampoo including red pigments.