With aloe, vitamin C & coconut oil. Clinically proven. Less damaging. 10 min. Ammonia-free. Proven healthier-looking (vs untreated), radiant color. Blends away grays. Lasts 28 shampoos. Healthier-looking (vs untreated), radiant color. Natural Instincts with an ammonia free formula, gives you healthier-looking (vs untreated), radiant color and blends away gray in 10 minutes. Color lasts up to 6 weeks. System with aloe, vitamin C & coconut oil. Our demi-permanent Natural Instincts system with aloe, vitamin C and coconut oil. It's proven less damaging (Natural Instincts Level 2 non-permanent vs.