Helps with brassiness
"Both my husband and I use this shampoo. He is fully gray and uses it once a week. I am partially gray with a lot of brassy brown tones. This really helps even out my hair color to a nice salt and pepper color. I have extra long hair and found that it suds up better if I first shampoo with my regular Moroccan oil hydrating shampoo and then after rinsing, use this. I then only need a quarter size amount to suds up my whole head."