Harmony · Side view · Upper Third
Browridge Inclination Angle
The inclination of the forehead’s hairline-to-glabella line relative to vertical.
What is measured
The calculation
Acute angle between the hairline–glabella line and photo vertical
Side view / Measurement guide
Follow the measurement
Dots mark the landmarks. Lines show how the measurement is taken.
In these guides, nasion means the nasal root, subnasale the nose base, and pogonion the most forward chin point. Frankfort refers to the direction from the ear-opening landmark to the lower orbital landmark.
Why it matters
This describes the overall lean of the forehead above the brow. It is a broad outline measure rather than a direct measurement of how far the brow ridge projects.
- Lower: the line lies closer to vertical.
- Higher: the line is more inclined; the value alone does not retain direction.
Where the idea comes from
FaceIQ adaptation
This is a FaceIQ photographic construction. Clinical profile analysis provides context, but the cited work does not validate this exact landmark formula or its scoring range. [1]
A worked example
A line that shifts horizontally 10 units over 60 vertical units makes an inclination of arctan(10 ÷ 60) ≈ 9.5°.
Example values explain the calculation. They are not a target range and are not measurements of the schematic above.
Research & further reading
The sources below explain the history or related evidence. FaceIQ’s score weights and reference ranges are model settings; these papers do not collectively validate the scoring system.
[1] Farkas et al. · 2005
International anthropometric study of facial morphology in various ethnic groups/racesDocuments variation in facial dimensions across sampled populations. Descriptive measurements explain variation; they do not establish an attractiveness score.