Revlon Colorsilk #12 Natural Blue Black is a single-application permanent hair color kit with ammonia-free colorant, cream developer, and keratin-enriched after-color conditioner, giving the deepest black in the range with a cool blue reflection with 100 percent gray coverage. It is available as a single box or in a Pack of 3 or Pack of 6, shipped fast from New Jersey.
Revlon Colorsilk #12 Natural Blue Black: Deep Blue Black Permanent Hair Color
- Shade #12 Natural Blue Black — intense black indoors with a subtle blue reflection in sunlight
- Works on any starting shade — gives consistent results on blonde, brown, or gray hair since it only deposits color
- Ammonia-free permanent formula — permanent color that grows out rather than washing out, with 100 percent gray coverage stated on the box
- Keratin-enriched — 3D Color Gel Technology for multi-tonal results, plus an after-color conditioner with keratin
- Sister shades — pick #10 Black for a neutral black or #11 Soft Black for a softer, warmer near-black
- Pack options — Single kit, Pack of 3, or Pack of 6 for keeping a spare box for root touch-ups
How to Use
Patch test 48 hours ahead and strand test if you are unsure how #12 Natural Blue Black will take on your hair. Put on the gloves, mix the colorant into the developer bottle, shake well, and apply to dry, unwashed hair. For regrowth, start at the roots and work the rest through during the last few minutes; for a first all-over application, saturate from root to end. Leave on for about 25 minutes as the leaflet directs, rinse until the water runs clear, and follow with the conditioner. Store unopened kits at room temperature away from heat and sunlight, and discard any leftover mixed color; it cannot be saved for a later use.
About Revlon
Revlon was founded in New York City in 1932, starting with a single nail enamel before growing into one of the best-known American beauty companies for lipstick, makeup, and hair color. Colorsilk is Revlon's long-running at-home permanent hair color line, built around an ammonia-free formula, 3D Color Gel Technology for multi-tonal results, and a keratin-enriched after-color conditioner. The range covers more than 40 shades from ultra light blonde to blue black. Browse the full Revlon collection or explore more in our Beauty collection. Learn more at revlon.com.
Frequently Asked Questions
What hair color will I get with Revlon Colorsilk shade #12 Natural Blue Black?
Shade #12 is the deepest black in the Colorsilk range, with cool blue undertones that show as a subtle blue sheen in sunlight and read as intense black indoors. It gives an even, saturated result on any starting color from blonde to dark brown, and it covers gray fully. Choose it for a cooler, more dramatic black than #10.
How do I apply Revlon Colorsilk #12 Natural Blue Black?
Do a skin patch test 48 hours before coloring. Mix the colorant into the cream developer bottle, shake, and apply to dry, unwashed hair, starting at the roots if you are covering regrowth. Leave it on for about 25 minutes as the leaflet directs, rinse until the water runs clear, then use the included conditioner.
Is Revlon Colorsilk #12 ammonia-free, and does it cover gray?
Yes. Revlon Colorsilk #12 Natural Blue Black is an ammonia-free permanent hair color, and the box states 100 percent gray coverage. The formula is enriched with keratin, and the kit includes an after-color conditioner. It is permanent color, so it grows out rather than washing out, and roots will need a touch-up every four to six weeks.
How many boxes of Revlon Colorsilk #12 do I need for long hair?
One kit is a single application that covers short to shoulder-length hair of average thickness. If your hair is past the shoulders, very thick, or very curly, use two boxes so you can saturate every section from root to end. The Pack of 3 and Pack of 6 options are the easiest way to keep a spare kit on hand.