Key Benefits Gently cleanses without stripping Strengthens and protects fine hair Removes buildup to help volumise and lift at the roots Clinically proven to repair and prevent future damage Clinically proven to strengthen hair This ultra-light volumising shampoo for fine hair is clinically proven to strengthen, repair, and prevent future damage from everyday elements, styling, or salon services.* The best shampoo for fine hair has to repair as it volumises. Nº. 4FINE gently removes buildup to leave hair clean and soft with lasting volume, body, and bounce – never weighed down or dried out. *When used with Nº.5FINE Bond Maintenance® Conditioner. How To Use Apply to wet hair. Lather thoroughly and rinse well. Follow with Nº.5FINE Bond Maintenance® Conditioner.