It has more conditioning lasting colour with aloe vera. No ammonia and no parabens. 100 percent grey cover. Herbatint is the finest, most natural permanent hair colouring gel. Free of harsh chemicals and ammonia. Herbatint offers a safe, gentle and effective way to colour your hair and cover grey with just 1 application. Herbatint can be used even if a chemical dye has been used to colour your hair and if your hair has just been permed.