This hairline test helps you compare a visible outline and measure a photo proportion. You can choose a simplified Norwood reference or place a marker at your hairline to compare forehead height with visible face height. It cannot tell you whether you are losing hair, identify a cause or recommend treatment.
Use it when you want clearer language for a styling conversation. A screenshot with a marked hairline can help you explain where a fringe begins or which areas you prefer to leave visible. You do not need an account. Your picture stays on your device, and the sample lets you see the process before using your own photo.
How to use the hairline test
Take a straight-on picture with your head level. Move hair away from the edge if that is comfortable and possible. Keep the lighting even enough to see the boundary without a strong shadow. A shadow from the hair can look like part of the hairline, especially when the light is directly overhead.
Choose the closest illustrated pattern if you want a rough reference. There is an Unsure option because a small front-view drawing cannot describe every head of hair. Check the crown separately in a mirror; a front photo cannot show it. Selecting a pattern records your choice, not an automated diagnosis.
For the optional photo step, drag the marker to the visible center hairline. The tool compares marker-to-brow distance with marker-to-chin distance. Move it a little and watch how the result changes. That sensitivity is part of the reason you should treat the percentage as a photo measurement rather than a health score.
Hairline types and what a picture can show
| Observation | What you can describe | What you cannot conclude here |
|---|---|---|
| A central point | A widow's peak outline | Whether hair loss is occurring |
| Visible temple corners | The shape at each side | Whether the shape is new |
| A higher center line | More visible forehead in this picture | A diagnosis from forehead size |
| A changed outline across old photos | A difference worth discussing | Its cause from pictures alone |
| A less visible crown | A gap in the front-view evidence | A full Norwood classification |
A description can be useful without becoming a diagnosis. “My temples look different in these two photos” is a specific observation. “The tool says I am balding” would give the software an authority it does not have. Keep that distinction when you save or share the result.
Widow's peak
A widow's peak describes a central point in the hairline. The marker does not decide whether to follow that point or an imagined straight line across the temples. Place it on the visible central boundary for a consistent comparison, then note the shape separately. Do not compare a point in one photo with a higher line in another.
A fringe can change how much of the point you see without changing the hairline itself. If your interest is styling, compare open-forehead and fringe options. The tool does not recommend removing hair or altering the hairline.
Norwood scale and receding hairline stages
The seven drawings are simplified references, with the men's view showing the pattern picker. They are not a substitute for a clinical assessment. Real patterns can be uneven, hard to see or different from a small illustration. The women's view focuses on the marker and consistent photo comparison instead.
Do not read the numbers as a countdown or predict a future stage from your selection. The tool has no history of your hair and does not measure change over time. It also cannot inspect the scalp or distinguish shedding from breakage using a front-facing picture.
Receding hairline vs mature hairline
You cannot reliably settle this distinction from one forehead ratio. A higher hairline may be the outline you have had for years, and a visible difference between pictures may reflect angle, hair placement or lighting. Compare like with like before deciding that the boundary has changed.
If your concern is an actual change, bring dated photos and your observations to a dermatologist. The American Academy of Dermatology's guide to hair-loss causes explains that hair loss has multiple possible causes. This tool does not identify them or choose a treatment.
Keep the original images as well as any marked versions. A line placed by hand is an interpretation of the photo. Someone reviewing the concern needs to see the visible boundary, not only the percentage that came from your marker.
Worked example: the sample and the marker
On Noah, the men's sample photo, the face-shape geometry has a calibrated length-to-cheekbone-width ratio of about 1.37. That figure belongs to the face-shape estimate. The hairline percentage uses a different calculation: marker to brow divided by marker to chin. Mixing the two would compare different measurements.
Try the sample by moving the marker upward, then back to the visible boundary. The reported forehead proportion changes even though the face and hair have not changed. That is the lesson of this example: marker placement affects the result, and a changed number alone does not demonstrate hair loss.
For another arithmetic example, if the marker-to-brow distance were 60 pixels and marker-to-chin distance were 200 pixels, the displayed proportion would be 30%. Those are illustrative inputs, not measurements claimed for the sample. There is no pass or fail threshold attached to that result.
Choose a style with the information you have
Use the haircut quiz to include your texture and upkeep preferences. The haircut identifier can help you name a reference style, while the face shape detector compares facial proportions separately from the hairline marker.
Explore the hairline filter for styling ideas or what haircut suits me for a broader shortlist. Those previews are also separate from medical assessment. A haircut can change the outline you see in a mirror without establishing anything about the cause of a hair change.
Save a result only if it helps you explain a practical preference. You might want a lighter fringe, more forehead coverage or a style that leaves the temples visible. The hairline test is useful for that conversation. It is not a reason to start, stop or buy a treatment.
