Herbatint Permanent Herbal Haircolour gel (in 8c light Ash Blonde) has more conditioning lasting colour with aloe vera. no ammonia and no parabens. 100% 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. Depending on the length of your hair, Herbatint can be used for 1 application or can be saved for a second application when the colour has grown out. Herbatint can be used even if a chemical dye has been used to colour your hair and if your hair has just been permed.