Goldwell Colorance Acid Color For Professional Use Only. Gentle Semi-Permanent Hair Color Without Ammonia. Provides Long-Lasting, High-Shine Results. Tones Down Bleached Or Highlighted Hair Product Information:Goldwell Colorance Acid Color For Professional Use Only. Gentle Semi-Permanent Hair Color Without Ammonia. Provides Long-Lasting, High-Shine Results. Tones Down Bleached Or Highlighted Hair,Product Specification:Product Code: Mp-00057143