Highlighted, colored, or bleached blonde hair can become gray or yellow over time, while natural blonde hair can become dull and lack shine. The nourishing ingredients in this color-enhancing hair mask include almond butter, shea butter, and buriti oil, combined with iridescent pigments, all helping to neutralize brassy or yellow tones, restoring the shine, brightness, and contrast of hair color. How do I use it: Wash hair with shampoo to reset the hair fiber. Then towel dry and apply shade variation mask. Leave in for two to 30 minutes, depending on the desired intensity. Rinse thoroughly. Note, for the first application, leave the product on for only five minutes so that you can determine your desired shade. Color will fade in three to five shampoos. Does not cover grays. From Christophe Robin. Includes: