Indus Valley Bio Organic Medium brown Hair Colour is 100% Organic, now you can change your hair colour without using harsh chemical and naturally with the Organic Herbs. As it prevents you from other hair related issues Like hair loss, dandruff, Premature Greying, Dryness. it is suitable for hypoallergenic people. It does not contain Chemical, synthetic fertiliser or pesticides. Indus Valley Bio Organic Soft Black Hair Color is USDA, Ecocert & 100% Organic Certified Hair colour. As it contains Henna (Lowsonia Inermis), Indigo (Indigofera Tinctoria), Colourless Henna (Cassia Auriculata). combination of these three herbs gives you black hair colour in just 40 miniutes.