Because the toner actually takes a few months to fade out, as your roots grow, there's no telltale highlight "line" to give them away. Your color looks like your younger self's hair a few months after a summer on the beach — still your shade, just better and brighter.

How long does a root smudge last?

Most root smudges need to process for at least 15-20 minutes for max longevity, and a root smudge is absolutely necessary to create most of the modern looks that are all over the internet these days.

Does a root smudge fade?

It fades beautifully and therefore makes it easier to lift through at the next appointment. It's also important to master a variety of root smudging formulas so that you have the confidence you need to be successful.