Here's why:
* Better absorption: Dry hair allows the hair color to penetrate the hair shaft more effectively, leading to a more even and vibrant color.
* Reduced dilution: Applying color to wet hair can dilute the color formula, making it less effective.
* Prevents damage: Applying color to wet hair can make it more susceptible to damage, as the hair is more fragile when wet.
However, there are a few exceptions:
* Some hair colors are designed for wet application. These products are usually labeled as such and may have a different formula.
* If you have very thick or coarse hair, applying color to damp hair can help it absorb more evenly. You can lightly mist your hair with water before applying the color.
Always read the instructions on your specific hair color product. They will provide the best guidance for your particular formula.