Rule 4: Do a Test Drive Before Committing to a Permanent Color
"For safe coloring, I recommend demi-permanent hair color, which will fade slightly each time you shampoo," says Saboski. "Demi-permanent color also minimizes damage and simply enhances the natural color." Demi-permanent color is a mixture of permanent and semi-permanent dyes. It doesn't have the power to lighten dark hair, but it can match or deepen your color.
You can also try semi-permanent dye, which, as with demi-permanent color, won't lighten your hair. Semi-permanent formulas don't penetrate the hair deeply and wash out in about 8 to 12 shampoos.
By: Daily Glow