Clean your eyebrow and the skin around it
Comb eyebrow hairs upward with a spoolie
Mark the slit location with a small cosmetic pencil line
Use a new, clean razor or eyebrow trimmer
Hold the skin taut
Shave a thin vertical line through the eyebrow
Remove only a small amount of hair at a time
Check symmetry in a mirror
Clean up loose hairs
Apply a gentle antiseptic or soothing aftercare product
Avoid repeated shaving over the same spot
Stop if the skin becomes irritated or cut
Let the area heal before reshaping again