Biolage Smooth Proof Shampoo gently cleanses while taming frizz and smoothing unruly strands. Powered by camellia oil and filtered glycerin, this professional-grade formula nourishes, hydrates, and shields your hair against humidity and environmental stressors. Cold-pressed camellia oil forms a lightweight protective barrier around each strand, locking out moisture that causes frizz, while glycerin attracts hydration for lasting smoothness. Say goodbye to flyaways and hello to sleek, manageable hair. Benefits: Tames frizz and smooths unruly hair. Infused with camellia oil for humidity protection. Glycerin binds moisture for long-lasting hydration. Leaves hair sleek, soft, and manageable. Gentle formula suitable for daily use. How to use: Apply to wet hair and gently massage into the scalp and lengths. Lather thoroughly to cleanse and smooth. Rinse well and follow with Smooth Proof Conditioner for best results.