Tressa WATERCOLORS Intense Shampoo has been developed with technology using a new approach to provide the most Intense deposit of direct dye in a shampoo ever! Intense color and amazing condition is achieved by using Complex Direct Dyes delivered by Cat-ionic Conditioners from natural renewable sources allows WC Intense to live in the 5.3 to 5.8 PH range accomplishing a deep deposit without the harsh drying effect of others on the market. WC Intense is the solution for Direct Dye customer�s two main objectives � Fading and Commitment. Tressa Watercolors Intense Shampoo is Sulfates, Salts, Peroxide, Parabens, PPD and PTD Free!