Forever Liss Intensive Black Hair Toning Kit. Long-Lasting, Vibrant Black Hair for Lustrous Shine and Deep ColorDark hair also suffers from fading caused by external agents, such as the sun, the dryer and the washing routine. In order to keep black hair with the color always alive and radiant, we developed intensive Black Forever Liss Black Hair Tone kit that fights the fading of black hair and dark tones without damaging the strands. Formula enriched with Phytokeratin, Castanha do Par and D Panthenol, promotes deep hydration, restores the natural shine of the