Collagen helps you my lady to protect hair until your next hair coloring, for long lasting radiance. For 100% coverage & gorgeous root-to-tip color, treat yourself to Excellence Creme hair color. L’Oreal Paris gives you a new generation of hair color, the first long-lasting hair color without ammonia. It uses the power of Micro-Oil technology to remove deep coloring inside the hair from root to tip. The quality of the hair is preserved, and the color result is rich, natural and long-lasting.