The Pam&Roy herbal hair colouring range is a product line of herbal dye, natural hair colourings. The range not only offers you the opportunity to naturally colour your grey hairs but also to prolong the life of your own hair. Pam&Roy Herbal Water Colouring is a permanent hair dye product, which has 100% grey hair coverage. It doesn’t require any developer, just mix the herbal colour powder with warm water, then apply it to the hair. It doesn’t damage the hair and no allergic reaction.