Revlon Colourstay. Long-lasting permanent color. Up to 8 weeks of color. High-performance formula for radiant and intense color and una 100% gray hair coverage. Restores color intensity like day one. Includes Color Enhancer Mask, which redeposits color pigments on the hair surface in just 5 minutes. Apply 3 to 4 weeks after the initial coloring. vegan. No added silicones or mineral oil. Nourished and shiny hair: Ultra-nourishing formula for soft and silky hair with a una combination of 100% natural Murumuru Butter and Macadamia oil.