BioSilk Color Therapy Leave-In Treatment is an intensive simple treatment suitable for colored hair. This lightweight treatment of BioSilk does not have to be rinsed out of the hair. The hairs are protected against harmful UV rays and external influences, preventing dehydration. BioSilk Color Therapy Leave-In Treatment is enriched with maracuja, an essential ingredient that protects hair color from fading. This fine treatment also contains silk proteins. These silk proteins ensure that the hair becomes incredibly soft and will shine beautifully. This Color Leave-in from Biosilk is free of SLS and parabens.