A PSL test is only as good as its conditions. Same light, same angle, same expression — or the delta is noise. This page gives you the standardized protocol, the free measurement, and a 30-day retake plan that turns a one-off score into a trend you can trust.
No photo handy? Try an example: 🔒 Free measuring runs entirely on your device. When you unlock the AI deep report you can choose to attach your photo — used only to generate that one readout, then discarded, never stored. Scores are geometric measurements, not a judgement of your worth.
Every item below moves individual readings by more than most real change does. Lock them in:
- Angle: camera at eye level, front-on, ears level (a tilted head fakes asymmetry)
- Light: soft, even, front lighting — no harsh side light (fakes shadow-asymmetry) and no overexposure (wipes the eye area)
- Expression: neutral, relaxed jaw, lips together
- Distance: arm's length or a front camera at consistent framing
- Hardware: same device, same app, no beauty filters (they move landmarks, not faces)
The tool above runs the full pipeline on your device — 478 landmarks, 8 metrics, your PSL score with the weakest link flagged. Free, no account.
Three things, in order of usefulness:
- Your weakest metric — that is the highest-leverage signal on the page, and the deep report's improvement plan targets it.
- Your tier — see the PSL tier list for where your band sits and what its defining geometry looks like.
- The score itself — last, and only against your own baseline. The PSL score page explains the scale's median anchoring.
One measurement is a snapshot; the trend is the signal. The protocol:
- Day 0 — baseline test, saved locally with the date (the tool does this automatically)
- Days 1–29 — work the plan: leanness, brows, hair, skincare, sleep. Change inputs, not the camera.
- Day 30 — retake under identical conditions, same checklist, same device
- Read the delta, not the number — +0.3 under controlled conditions is real progress; +0.8 across different lighting is noise
The tool keeps your last 10 results on-device and draws the trend — no account needed, nothing leaves the device.
- "My score dropped overnight" — conditions moved. Check the checklist before believing it.
- "One photo says 4.1, another says 5.2" — both are true for their conditions. Standardize, then compare.
- "The test says my eyes are bad" — one low metric is a pointer, not a verdict; harmony penalizes fixation on a single feature.
Inline above: frequency (every 30 days), why scores drop (conditions), and the standardization list. For what the numbers mean, see PSL score and the tier list; for how the math works, the methodology publishes every formula.