MUVO Coolest Brunette Shampoo is your answer to keeping dark hair cool. When that brassy fade starts to appear, now you can add back cool tones. From deep rich brunettes that need extra gloss or balayage brunettes that need to tone down the copper fade, your answer is in this groundbreaking brunette shampoo. See directions for application timing. For all types of dark hair. Maintaining healthy and vibrant hair has never been easier! Multi-functional Coolest Brunette allows you to extend your colour and freshen up in between salon visits. Brunettes are the coolest!