Question: What is the ruling on bleaching the eyebrows by dying the top and bottom of the eyebrow with a color similar to the skin color?
Answer: “This is like the refinement of the eyebrow such as it disappears. The result is the same. For verily if the color changes, then it is as if it is shaved or plucked”.
[Taken from: Sharh Sunan Abu Dawood no. 468]
Faisal Ibn Abdul Qaadir Ibn Hassan