Radiant, long-lasting rich color that leaves you hair in better condition. Revlon colorsilk gives you natural-looking, even color from root to tip that stays beautiful between colorings. Plus, it is formulated to penetrate every strand with its gentle, ammonia-free formula. Description. Delivers beautiful, long-lasting color and 100% gray coverage while leaving your hair in better condition through its ammonia-free formula, protective UV filters, nourishing silk proteins and a fabulous range of shades.