Module
Hair analysis: how Facet scores your hair
Last updated: May 22, 2026
Facet's hair module currently uses Claude visual assessment to score hair density, line of attachment, and overall hair quality. A dedicated CV pipeline for density per cm² using clinical scales (Sinclair for diffuse thinning, Savin for female pattern, Norwood for male pattern) is deferred to V3. Recommendations cover natural protocols (nutrition, scalp care) and clinical protocols (minoxidil, finasteride, transplant consultation) as applicable.
Why this matters
Hair quality and hairline position are major aesthetic markers, particularly for facial framing. Hair loss is one of the most common cosmetic concerns globally, affecting roughly 50% of men by age 50 and a meaningful proportion of women in midlife. Early intervention (FDA-approved topicals before significant loss) has substantially better outcomes than late intervention.
Parameters measured
| Parameter | Units | Citation | Note |
|---|---|---|---|
| Visual density assessment | Claude visualScore | Visual qualitative | 0 to 10 scale by qualitative assessment |
| Sinclair scale (deferred) | 1 to 5 grade | V3 roadmap | Female diffuse thinning scale |
| Savin scale (deferred) | 1 to 8 grade | V3 roadmap | Female pattern scale |
| Norwood scale (deferred) | I to VII grade | V3 roadmap | Male pattern scale |
What your hair score means
| Score band | Meaning |
|---|---|
| 8.0 to 10 | Excellent. Dense hair, well-maintained hairline, no visible thinning. |
| 6.5 to 7.9 | Good. Healthy hair with minor density or hairline issues. |
| 5.0 to 6.4 | Average. Visible density loss or hairline recession in some areas. |
| 3.5 to 4.9 | Below average. Meaningful density loss; intervention recommended if hair is a personal concern. |
| 0 to 3.4 | Significant hair loss. Clinical consultation for treatment options strongly recommended. |
How to improve your hair score
- If you have any visible thinning and hair matters to you, start FDA-approved topical minoxidil 5% (women: 2% or 5%, formulations differ) early. The earlier you intervene, the better the outcome.
- For male pattern hair loss specifically, oral finasteride 1mg daily is the most evidence-backed pharmaceutical intervention. Consult a physician for prescription and side-effect discussion.
- Nutritional sufficiency matters: protein adequacy, iron, vitamin D, and B vitamins all affect hair growth cycles. Bloodwork can identify correctable deficiencies.
- Scalp health affects hair quality. Use a gentle sulfate-free shampoo and avoid aggressive heat or chemical processing.
- For more advanced loss, hair transplant (FUE or FUT) is the surgical option. Outcomes depend heavily on surgeon experience and donor hair availability.
Frequently asked
Why does Facet's hair module use Claude visual assessment instead of CV?+
Building a clinically calibrated CV pipeline for hair density per cm² is a substantial project requiring labeled training data across hair colors, textures, and ethnicities. Claude visual assessment gives reasonable directional output today; the full CV pipeline (Sinclair, Savin, Norwood) is on the V3 roadmap.
Is minoxidil effective for everyone?+
Minoxidil works for roughly 60 to 70% of users who use it consistently for 6+ months. Effects plateau if stopped. The most common reason for poor outcomes is inconsistent use or stopping too early. Discuss with a dermatologist for personalized assessment.
Should I get a hair transplant?+
Transplant decisions are personal and complex. They depend on the stage of hair loss, donor hair density, age (you should be on stable medical management first), budget, and your tolerance for a multi-stage process. Consult multiple board-certified hair restoration surgeons before committing.
Does Facet score eyebrow density too?+
Eyebrows are scored separately in the eyebrow module, including thickness as a parameter. Hair on the head is the hair module's scope.