Sagot :
The 4 Steps of Every Hair Color Service
Determine the hair's natural level.
Determine the level to which you want to take the hair.
Determine the tone; you're trying to get the hair either warm or cool, and then select a color.
Determine what developer you need to use with the color you've chosen.
Determine the hair's natural level.
Determine the level to which you want to take the hair.
Determine the tone; you're trying to get the hair either warm or cool, and then select a color.
Determine what developer you need to use with the color you've chosen.