General search term.
Might be referring to: 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..
This is a seasonal trend that repeats every November.
This trend is forecasted to be growing in the next 2 years.