Enjoy up to 5 months of smooth, shiny, manageable hair with our award-winning signature Natural Keratin Smoothing Treatment for sleek strands. Clients looking for smooth, shiny, more manageable hair with the maximum longevity. Natural Keratin Smoothing Treatment smoothes unmanageable hair and protects it from humidity. Salon professional smoothing system is formulated with proprietary Signature Keratin technology for hair repair and protection. Delivers shine and softness as well as repairs damage for healthier hair. Dramatically reduces blow-dry time. Enhances hair color vibrancy. Cumulative hair smoothing results.