American Crew Precision Blend hair color provides natural coverage for graying hair and beard. The formula blends naturally without a brassy effect due to its cool-toned formula. Plus, the formula is infused with vitamin B5 to add hydration. Features Ammonia free Tone without brassiness Natural coverage Infused with Vitamin B5 Suitable for hair and beard Quick break time: 5 minutes Lasts up to 4-6 weeks How to use Ratio 1:1 with American Crew 15 vol developer