What it DoesAn ultra-light, highly concentrated fine hair shampoo to volumize and strengthen.How to Use This ultra-light, highly concentrated volumizing shampoo for fine hair is clinically proven to strengthen, repair, and prevent future damage from everyday elements, styling, or salon services.* The best shampoo for fine hair has to repair as it volumizes. No.4 FINE gently removes buildup to leave hair clean and soft with lasting volume, body, and bounce - never weighed down or dried out. *When used with No.5 FINE Bond Maintenance Conditioner.Hair Color: Not Hair Color SpecificFluid Oun...