How to Use Root Touch-Up Permanent Hair Color at Home

Gray roots can start showing long before you are ready for your next full-head coloring. Instead of coloring all your hair again, many people choose a root touch-up permanent hair color to cover only the gray roots that show.

A root touch-up permanent hair color helps maintain your color between full-head colorings while reducing unnecessary chemical exposure, saving time, and minimizing mess.

If you're new to root touch-ups, this guide explains how to use them at home for natural-looking results.

What Is Root Touch-Up Permanent Hair Color?

Root touch-up permanent hair color is designed to color gray root regrowth while matching the rest of your hair color. Unlike temporary sprays, powders, and root concealers that wash out after shampooing, permanent root touch-up hair color provides long-lasting coverage that remains until new gray root regrowth appears.

If you're not sure whether a temporary or permanent option is right for you, read our article on Temporary Root Touch-Up vs Permanent.

Step 1: Choose the Right Hair Color Shade

For the most natural results, select a shade that closely matches your current hair color.

If you need help selecting a shade, see How to Choose the Right Hair Color for You.

Step 2: Prepare Your Hair

For best results:

  • Start with dry, unwashed hair.
  • Brush your hair to remove tangles.
  • Wear gloves.
  • Protect clothing and surfaces before application.

Step 3: Mix Only What You Need

One advantage of a multi-use root touch-up kit is that you do not need to use the entire product at once.

Measure only the amount needed for the gray roots you want to cover. This allows multiple applications from a single kit and helps avoid product waste.

Step 4: Apply Color Only Where Needed

Focus on the gray roots that show, such as:

  • Along the hairline
  • Around the temples
  • Along the part line
  • Small areas of root regrowth

Apply the color carefully and precisely to the root area only. There is no need to color the rest of your hair if it already matches your desired shade.

For more information on why many people are choosing targeted applications, read Full-Head Coloring vs Permanent Root Touch-Up.

Step 5: Process According to Directions

Leave the color on for the recommended processing time listed in your product instructions.

Following the recommended timing helps achieve consistent gray coverage and color results.

Step 6: Rinse and Style

Once processing is complete:

  • Rinse thoroughly.
  • Follow any after-color care instructions provided with your kit.
  • Dry and style as usual.

Your gray roots should now blend with the rest of your hair color.

How Can One Kit Provide 24 Applications?

Traditional hair color kits are usually designed for full-head applications. Root touch-up permanent hair color focuses only on the areas that need coloring.

By coloring only the gray roots that show and mixing only the amount needed, a multi-use kit can provide many applications from a single package.

This approach can help:

  • Save Time
  • Reduce Unnecessary Chemical Exposure
  • Reduce Product Waste
  • Maintain Consistent Hair Color Between Full-Head Colorings

Learn more about maintaining color between appointments in How to Cover Gray Roots at Home.


Using root touch-up permanent hair color at home can be a simple way to manage gray roots between full-head colorings. By focusing only on the areas that need coverage, you can maintain your color while avoiding the time, mess, and chemicals involved in more frequent full-head coloring sessions.

Explore the full Caliin collection on our Shop Page and find the shade that matches your hair color.


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