Biolage SmoothProof Serum - 89ml Designed to hydrate and heal even the most brittle and frizzy strands to create a sleek, shiny, healthy hair look. Prove yourself smooth. Inspired by natures water-resistant camellia, Biolage SmoothProof Serum for frizzy hair provides humidity control and anti-frizz smoothness while adding shine. Key Benefits: Tames frizzy hair and flyaways Enhances hair shine Keeps hair smooth and protects against heat styling tools and humidity Paraben-free formula is color safe and suitable for color-treated hair Use Tames frizz and flyaways while adding shine Keeps hair smooth and protects against heat styling tools and humidity Paraben-free formula is also suitable for color-treated hair