Which part of the eyebrow has the least hair density?

• A. Tail
• B. Medial end
• C. Central
• D. Head

Answer: (B)

The eyebrow doesn’t have uniform hair density along its length—the inner portion near the nose is naturally sparser. The medial end has fewer hair follicles, so it shows the least density compared with the central area (which is usually the densest) and the outer tail (which also tapers). This natural pattern helps create a balanced look where the brow begins lighter and becomes fuller toward the center before thinning toward the tail. In practice, you’ll often see the inner area left lighter or thinner when shaping or grooming, with more fullness in the middle.