How long do I wait to lighten a too dark salon color?Any blond glazes ,shampoos,highlights that can lighten?

Hair color normally fades with time anyway - if it's just a little too dark, it'll fade on its own. If you want it to be a great deal lighter, you might use a color stripper and then re-color it, or get a highlight to soften the overall effect. Putting a lighter color over top of it won't help, though, you can't lighten color with color.

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