ColorSilk - Hair Dye 41 Medium Brown Bright and long-lasting color that leaves your hair extraordinarily beautiful. Revlon ColorSilk with UV protection gives your hair a natural look and an even color from root to tip. The gentle ammonia-free formula and the post-coloring conditioner with silk proteins penetrate and nourish the hair, making it even more voluminous, silky, and healthy. 100% gray hair coverage.