Dimorphism
Dimorphism: how masculine or feminine each region reads
3 min read · Updated October 4, 2026
Dimorphism measures how strongly each region of your face reads as typical for the sex you choose. A face can be well proportioned and still read neutral, which is why this pillar is separate from Harmony.
Why you choose a sex first
The same feature can score high for one sex and lower for the other: a wide jaw reads strong on a man and heavy on a woman, and high arched brows flatter a woman more than a man. Every region is graded against the sex you select, so the choice matters. It describes how features read in photos, not how anyone should look.
How it's graded
Dimorphism asks how strongly each region reads as typical for the selected sex. For a man it rewards masculine structure and for a woman, feminine structure, and a face that mixes strong cross-sex traits scores lower in that region. It is scored separately from Harmony because a face can be well proportioned and still read neutral or mixed.
It is a judgment of how features read, not a single measurement, so an AI model grades each region visually from your photo, on a 1 to 10 scale against people of the same sex, where 5 is typical.
What dimorphism is, and isn't
Dimorphism describes how features read in a photograph against a selected sex. It is not a measure of worth, and it says nothing about gender identity or how anyone should look. It simply reports how typical each region is for the sex you chose to be analysed as, because some people want to know exactly that.
A lower score here is descriptive, not negative. A mixed or neutral read is common, and it doesn't affect the other pillars: you can score well on Harmony and Features with a more neutral Dimorphism result.
Reading your regions
The report groups Dimorphism into five areas. Bone Structure covers the jaw, brow ridge and face shape, the parts set by your skeleton. Eye Area covers the eyes and eyebrow thickness, Nose is a single row, Hair covers the hairline, hair length and facial hair, and Lips & Neck covers the last two.
Rows set by bone change little, while rows involving hair, brows and grooming can change quickly. If you want to see movement between scans, those are the rows to look at first.
How hair is treated
Hair is the most changeable part of this pillar and is handled differently from bone structure. For men, hair length and facial hair are grooming choices: a clean shave, stubble, a full beard, and short to medium hair all score well, and only genuinely unkempt or patchy grooming scores low. For women, smooth skin with little visible facial hair scores highest, and hair length is a style choice that is never marked down for length alone.
Questions about dimorphism
Why do I choose a sex before scanning?
Every region is graded against the sex you pick, and the same feature can score high for one sex and lower for the other. A wide jaw reads strong on a man and heavy on a woman.
Is a low Dimorphism score bad?
No. It describes how a region reads, and many attractive faces read as neutral in places. It also doesn't change your Harmony measurements.
Can I do anything about it?
The hair items, and to a smaller extent brow shape, respond to grooming. Bone structure doesn't change, so treat those rows as information.
Does this say anything about who I am?
No. It reflects how features read in a photo against the norms for the sex you selected, nothing more.
Regions
Bone Structure
How masculine or feminine the jaw, brow ridge and overall face shape read.
Eye Area
How masculine or feminine the eyes and eyebrows read.
Nose
How masculine or feminine the size and shape of the nose read.
Hair
How the hairline reads, and how hair length and facial hair are treated.
Lips & Neck
How masculine or feminine the lips and the neck read.
See it on a full report
Open the sample report to see every measurement, score and highlight on a real example.