This process gives a vibrant long lasting natural dark brown colour to grey hair. Free of PPD & its derivates, peroxide, ammonia, it eliminates the risk of allergies, sensitivity and hair damage. Fortified with Amla, Bhringraj, Gotu Kola, Hibiscus, it softens hair, protects from dandruff, itchiness and lice. Hair can straighten temporarily. Those affected by sinusitis should avoid this.