Cool down with DYNAMIC BRUNETTE Cool Brown Shampoo! Gently cleanses hair and keeps brunettes rich, cool, and refined. Specially formulated to enhance cool browns and neutralize warm brown pigments. Perfectly balanced ash-brown pigments fight off unwanted brassy tones while replacing lost pigment with cool brown tones. Excellent for balayage and natural hair colors. Will not build-up, coat or dry out the hair with repeated usage.