New Dumb Blonde Shampoo Therapy For Chemically Treated Hair Go back to your roots with Dumb Blonde pH balanced shampoo, with keratin and milk protein, to help reconstruct and care for chemically treated hair. Getting blondes back to their brilliant best. What It Does: Strengthens hair and reduces breakage. Balanced cleansing system to remove build up without further drying hair out. Improves vibrancy and adds shine. We are an authorized dealer selling authentic products.