Successful Color Treatment

Shampooing hair
Q: Must my hair be newly cleaned without product for a successful color treatment?
A: To ensure a successful, even hair color process you always need to start with clean, dried hair.
The hair needs to be clean - free of product and excess oils which can prevent the color formula from penetrating and result in the color developing unevenly. It needs to be dry so that you can readily distinguish what portions of the hair have been covered and avoid ending up with gaps in your finished hair color.
You also want to make sure the hair is in its best possible condition before a color service. This means that you'll want to make sure to condition your hair well before performing a color application. This will ensure that the hair has a good balance of moisture throughout the hair shaft, and that the color formula will absorb evenly, further helping to guarantee even color.
Photo: Ball Lunla/Shutterstock
See also:
How to color hair
Basic hair care
Analyze the condition of your hair