Do you need to cover gray hair or completely change your color? Then the permanent ammonia-free hair dye Schwarzkopf Professional IGORA ZERO AMM is made for you! The dye creates an intense yet natural-looking color that lasts a long time. Its formula enriched with grape seed oil and apricot kernel oil helps maintain the hair's moisture balance and, being ammonia-free, does not emit the typical unpleasant odor.