Amika | Bust Your Brass Cool Blonde Shampoo Refill, 16.9 fl oz Amika Bust Your Brass Cool Blonde Repair Shampoo is a purple shampoo that tones unwanted brassy hues and results in 7x more repair, 55% less breakage, and stronger, healthier-looking hair. It is clinically proven to tone, hydrate, strengthen, and repair hair. This shampoo is designed for blondes, grays, and silvers 1-4c, plus high porosity hair. Excellent New Never Been Opened Condition Smoke Free Home 🏠 Offers are always welcome 😊