The goodness of 8 miracle hair-care and hair-colouring herbs is how Indus Valley New Hypo Allergenic Hair Dye functions. Without using any chemicals at all, the herbs are processed and grown organically. The hair colour functions with a pH balance that is kind to skin, between 5 and 7, and is specifically made for people with sensitive skin and allergy-prone skin. Without the use of any synthetic chemicals, it gives hair a pleasing dark brown colour. With no animal by products or extracts and no animal testing, Indus Valley allergy-free hair colour is a genuinely vegan and cruelty-free organic hair colour. It has been dermatological tested and is a mild PPD-free formulation.