Temporary hair color can be applied via spray, gel or cream and washes out of the hair. Certain conditions, such as the texture and general condition of the hair, can affect how long it takes a temporary color to wash away.
At Halloween, temporary hair color is available in every grocery store in the form of vibrant spray colors. During the rest of the year, the beauty aisle carries products called “comb-in color” that are used to cover gray or to tone down a bad bleach job. Color wax is a cross-over product that combines temporary color and hair wax. Therefore it colors your hair with a holding power.
Comb-in Color and Wax temporary hair color generally cannot lighten the hair. On darker hair, its effects may be imperceptible. Spray colors can be seen on dark hair. None is water-resistant.
With temporary hair color, you can experiment with different tones and shades without a long-term commitment. Since the pigment settles outside the hair shaft, temporary hair color can make your hair feel thicker and look shinier.
If the hair is damaged or very blond, temporary hair color can stain the hair shaft. In this case, it can take up to eight weeks to wash out, with the color getting progressively lighter each time the hair is washed. If you plan to use temporary hair color on very blond hair, you can reduce the odds of being stained, and improve hair texture, by using a deep-conditioning treatment.