Former 20. With aloe, vitamin E & coconut oil. 10 min. Ammonia-free. Proven healthier-looking (vs untreated), radiant color. Blends away grays. Lasts 28 shampoos. 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 E & coconut oil. Our demi-permanent Natural Instincts system with aloe, vitamin E and coconut oil. It's proven less damaging (Natural Instincts Level 2 non-permanent vs.