Gel hair colouring gets a 21st-century makeover with Indus Valley's exclusive Damage-Free Natural Gel Hair Color. Free from all commonly used chemicals like ammonia, hydrogen peroxide, paraphenylenediamine, barium and other heavy metals that cause irreparable harm to hair strands, the organically natural hair dye comes as a fresh breather against all the harmful chemical dyes currently available in the market. The dye is gentle in texture, and gives perfect grey coverage over a single application. Although a single application gives colours that last from 3 to 6 weeks, a single pack offers multiple applications. Being 100% organically natural, it is also recommended by doctors. During and after application, it generates a refreshing orange aroma and does not cause irritations to the eyes or the skin, unlike the chemical hair colours. The gel colour is certified by the recognised institutions Bio-Natural, Halal India and more.