Two words: hair smudging, AKA root smudging. ... So you might be asking, “what's hair smudging?” It's exactly what it sounds like: a hair color technique that creates a 'root shadow' by dabbing a slightly lighter hair color to your roots, resulting in fully covered roots and a seamless blend from root to highlight.

What is the purpose of root smudge?

A root smudge is a technique used specifically to blur lines of demarcation. It involves applying a color formula close to the client's roots, and then “smudging” it into the shaft of the hair. This creates a softer transition between the root and the lightened hair.

How is a root smudge done?

APPLY THE ROOT SMUDGE. Next, your colorist will use the root smudge technique. First, they'll mix together a gloss or semi-permanent dye that's your perfect shade. Then they'll apply the color to your roots using a tapping motion—this will create that smudged effect.