Make frizzy, unmanageable hair a thing of the past with the Schwarzkopf Professional BC Bonacure Keratin Smooth Perfect Treatment. The BC Bonacure Keratin Smooth Perfect Treatment intensively repairs the internal hair structure, smoothing down unmanageable strands & giving hair a soft, smoothing touch with a mirror-like shine. Formulated with an amino smoother, the treatment deeply nourishes whilst protecting hair from heat styling & humidity, ensuring long-lasting smoothness & irresistible shine. Apply a small amount to damp hair & work through. Rinse out thoroughly.