Matrix Color Insider Ammonia-Free Permanent Hair Color Revolutionary Technology: No-Ammonia, Permanent Haircolor with a Unique Oil Delivery Injection System. COLORINSIDER is a no-ammonia, precision permanent haircolor that maximizes high-definition color results with minimum stress to the hair's cuticle for outstanding shine. The beautiful shade palette offers vibrant reds, cool modern neutral tones, and rich browns, all with 100% grey coverage. Plus, since there is no ammonia (which means no odor!) your hair will be smoother and shinier than before. Color Injection Oil Delivery System uses the physical power of oil to propel color actives directly to the hair's core - Color develops from the inside out, optimizing the effectiveness of the color actives for maximized color impact with minimum levels of alkaline agent - Minimum stress on the cuticle surface. Outstanding hair protection - High-power reflects give exceptional color clarity - Perfectly polished finish shows off even, reflective color . - Perfectly calibrated balance of base and reflect, predictable results