GENTLE AND BOLD, GLOSSY COLOR FOR UP TO 8 WEEKS, EVEN ON DARK BASES. Here's to the bolder color you want, with the moisture you love! Natural Instincts Bold gives you gentle and bold, glossy color for up to 8 weeks, even on dark bases. With argan oil, açaí and guarana extracts and VitaBoost Color Amplifier, get smooth & moisturized hair with bold color. 0% ammonia, and no animal derived ingredients. It's ideal for dark bases and all hair types & textures.