ColorSilk Beautiful Color™ is the #1 hair color in the USA*. The ammonia-free hair color delivers 100% gray coverage. Achieve rich, long lasting hair color and a radiant shine at home. Revlon’s 3D Color Gel Technology™ delivers natural looking, multi-tonal color from root to tip providing definition and boosting your hair’s dimension. Now enriched with keratin and silk amino acid, Color Silk’s ammonia-free formula leaves your hair in better condition than before you ever colored it! ever colored it!