indus valley damage free permanent gel hair color (black 1.0) indus valley indus valley new damage-free gel colour is innovatively designed as a no-peroxide hair color to give you a damage-free coloring experience. it addresses the most damaging issue associated with chemical hair colors—turning naturally colored hair into permanent greys from prolonged usage of chemical hair dyes. the no-bleach hair color is made with exotic-8 natural herbs that repair and nourish your hair strands during coloration and prevent them from turning grey anytime soon. the rich, vibrant hair color lasts for 4-6 weeks and effectively covers grey strands in a single application without damaging your hair.