Natural Instincts is Ammonia Free formula, gives you healthier-looking, radiant color and blends away gray in 10 minutes; Color lasts up to 6 weeksnDemi-permanent Natural Instincts system with Aloe, Vitamin E, and Coconut Oil; Itu0026#39;s proven less damagingnLasts 28 shampoosnFor the most up to date information, we recommend you visit the manufacturer website for the best product details, including ingredients, hazards, directions and warnings.