A highly concentrated shampoo that strengthens and adds shine to damage-prone hair as it gently cleanses. The rich lather nourishes and repairs to leave hair smoother and more manageable. Pair with Nº.5 for softer, shinier, healthier-looking hair with every wash. Color safe. This highly concentrated, nourishing conditioner repairs, strengthens, and moisturizes hair prone to damage or dryness. From salon to shower, bestselling Nº.5 leaves hair smoother and more manageable in minutes. Pair with Nº.4 for softer, shinier, healthier-looking hair with every wash. Color safe.