OverviewRevlon ColorSilk Hair Color [47], Medium Rich Brown 1 ea (Pack of 7) - From the #1 selling hair color brand* in the United States, get ready for long-lasting, multi-dimensional color and shine with Revlon ColorSilk Beautiful Color. With Revlon 3D Color Technology, this at-home hair color delivers a natural-looking, rich, multi-tonal color from root to tip. The ammonia-free formula is infused with silk proteins that penetrate every strand to leave your hair looking silky, healthy, and in better condition than before you colored. UV defense helps keep your color vibrant and dimensional while the permanent formula provides 100% gray coverage. Instructions: Please follow the box instructions closely, but here are a few important points you might want to know right now about this hair color kit: For the best results, apply the hair color first to your roots in small sections (about 1/8" each). The typical leave-on time for all-over color is 25 minutes, but if you have particularly stubborn grays, add 5 more minutes (so 30 minutes total). Using Ultra Blonde shades 03, 04, or 05? Add an additional 20 minutes to the usual time frame (so 45 minutes total on your head).