Brow-to-eye distance: how high your brows sit

What brow-to-eye distance is

Brow-to-eye distance is how far your brows sit above your eyes, measured against your pupil distance. Low, close brows give a heavy, intense frame. High brows give an open, expressive one. In the app this measure is labelled Brow position.

Grooming can change this measurement directly. The brow is hair and skin rather than bone, so shaping, filling and even where you set the lower edge all move the number and how the eye area reads.

In the LookFlex app this measurement appears as Brow position.

How LookFlex measures it

LookFlex takes the average height of the lower edge of the brows and the average height of the upper eyelids, finds the vertical gap between them, and divides it by the distance between your two pupils. Dividing by pupil distance lets a close-up photo and a distant one give the same answer.

The lower brow edge, not the upper hair line, is the reference, so a heavily filled brow is read at its true bottom edge. Raised eyebrows increase the number immediately, so a neutral forehead matters.

The calculation: distance = (upper-lid height − lower-brow height) ÷ distance between pupils.

Landmarks used

LookFlex reads these points from the 478-landmark face mesh. The numbers are each point's index in that mesh.

• Lower brow edge: 52, 65, 282, 295
• Upper eyelids: 159, 386
• Pupil centres (used for the level reference): 468, 473

The full pipeline, including how pose and mirror-averaging reduce noise, is on how LookFlex measures your face.

Typical and scoring ranges

LookFlex shows two ranges. The typical range is the middle half of its reference set, from the 25th to the 75th percentile: half of the faces fell inside it. The scoring range is where a reading earns a closeness score of 100; outside it the score falls smoothly, with no cliff at the edge. Both differ for men and women, and LookFlex blends the two if you choose Other or prefer not to say. Unit: unitless ratio.

How to read your result

"The range" here means the scoring range. The impressions below are common styling descriptions, not research findings. What research does show is in the next section.

• Below the range: Brows sit low and close to the eye: an intense, strong frame. It can look heavy if the brows are thick and unshaped.
• Inside the range: Brow height sits inside the scoring range for your sex.
• Above the range: Brows sit high: an open, expressive look. Shaping the lower edge can bring them closer if you want more intensity.

What the research says

Limited evidence Research shows brows matter for how a face is read, but not what brow height is ideal.

• Removing the eyebrows from photos of famous people made them harder to recognise than removing the eyes (Sadr et al., 2003).
• After sleep loss, faces were seen as having droopier eyelids (Sundelin et al., 2013), which changes the eye and brow gap.
• We found no study of an ideal brow-to-eye distance. LookFlex's sex-specific ranges are styling conventions.

No study we cite tests LookFlex's own ranges. They come from the calibration described on the methodology page, and every source is listed under References below.

What influences it

Mostly fixed

• The position of the brow bone and the thickness of the upper lid, which are inherited.
• Age, which can change brow position.

Things that move the reading

• Grooming. Which hairs you remove from the lower edge decides where the brow appears to start.
• Fill and lamination. Cosmetic products and treatments change shape and density.
• Expression. Raising your brows, even slightly, increases the number.
• Lighting and camera height, which can lengthen or shorten the eye area in a photo.

How to improve how it reads

These suggestions change how the measurement reads or how well the photo captures it. Styling tips are common practice rather than tested in research, and none of them promises a change in bone structure.

• To look more open, tidy stray hairs from the lower edge. To look more intense, leave the lower edge natural and groom only the top.
• Fill sparse patches with a light touch rather than a hard line, and match the shade to your hair.
• Relax your forehead when you scan. A habitual lift of the brows inflates the reading.
• Go gently with plucking and waxing. Small changes are easy to undo and big ones are not, so a single professional shaping and light maintenance is the cautious route.

Common myths

Myth: Plucking more will permanently raise your brows.

It shifts the visible edge, not the brow bone, and it removes density. Shape within what you have.

Myth: Higher brows are always more attractive.

In styling convention lower, straighter brows lean masculine and higher brows lean feminine, which is why the ranges differ: 0.145–0.195 for men and 0.185–0.250 for women. Within each range, personal taste decides.

How it feeds your score

This measurement is one input to one sub-score, which then combine into your Glow Score:

• Eyes: 15% of the sub-score. Eyes carries 17% of the Glow Score.

Precision. Every reading of this measurement comes with a 95% margin, estimated by measuring your photo three times. Across the reference set the median margin was ±0.0088: a retake in similar conditions usually lands within that much of the first reading. A change between two scans counts as real only when it is bigger than both scans' margins combined.

Confidence. LookFlex starts this measurement at a confidence of 80% and lowers it when your head angle, the lighting or image quality weakens the reading. The weight of each input in a sub-score scales with its confidence. Details are on the methodology page.