Schwarzkopf Igora Vibrance TONE ON TONE Coloration Ammonia-Free 2.1oz (3-0) Dark Brown IGORA VIBRANCE Tone-On-Tone is a high-end tone-on-tone coloration hair color which evolves beautifully over time with a minimized re-growth effect. The ammonia-free Multi-Layer Technology provides fresh and intense colors with irresistible shine. Benefits: Ultimate highest intensity shine with up to 70% white hair coverage. Vibrant, expressive fashion tones and multi-layer color technology.