Biolage Smoothproof Shampoo By Matrix Is A Hydrating Anti-frizz Shampoo Designed Specifically For Dry And Unruly Hair. Drawing Inspiration From The Moisture-resilient Camellia, This Shampoo Provides Complete Control Over Frizz And Humidity. When Used With Smoothproof Conditioner And Serum, It Delivers Exceptional Smoothness That Withstands Humidity Levels Of Up To 97%. This Shampoo Gently Yet Effectively Cleanses, Enhancing Manageability And Softness. It Polishes Each Hair Strand, Leaving It Silky And Shielded From Environmental Stressors. Its Paraben-free Formula Is Also Safe For Color-treated Hair.