Matrix SoColor Pre-Bonded Permanent BlendedHair Color 3oz is an oxidative dye that is perfectly matched toachieve seamless, scalp-to-end color, that lasts and fades on tone. Matrix exclusive Bond-Protecting Concentrate protects the inner hair structure and maintains the integrity of the hair, color after color. ATTENTION: These products require professional expertise. The seller is not liable for any adverse outcome resulting from the use of this product.