What Do People Use To Change The Color Of Their Eyebrows (temporarily) For Cosplay To Match Their Wigs?
If you’re after more absurd colours such as purple, green etc, try coloured mascara and run that through your eyebrows. MAC mascaras are great and it really goes on well, even on darker eyebrows!

Your not ment to because you could get dye in your eyes. Ask a hair dresser if you want it done, I’m sure they would so it for you.
eyebrow pencil or eyebrow/eyelash tint
Call diff hair salons. So do not do this yourself!! Where I go they tint, but I don’t know what kind of change you are making. Maybe just color over with an eye/brow pencil. That’s what I would do!