Lumen

Most skin scanners guess, then sell. This one measures four optical properties of your skin in CIE L*a*b* colour space, reports how precise each reading is, and never sends an image anywhere.

No login No account Nothing uploaded Free to scan

Everything happens on the device in your hand

📷

Your cameraphone, laptop or iPad

⚙︎

Your device's memoryread as numbers

Frame discardedwithin a second

The internet

Your picture never reaches this line. There is no server to receive it, no database to store it, and no copy left behind — not on your device, not anywhere else.

01 Profile
02 Measure
03 Results

What the camera can't see

A camera measures the surface of your skin — its colour, redness, shine and texture. It cannot measure hydration inside the skin, or how your skin reacts to a product. Six questions cover that half.

Skin profile

—

Measurements

—

Individual Typology Angle

—

Very lightLight Interm.Tan BrownDark

—

Zone map

Shine Redness Under-eye Within range

From your answers

What to look for

—

Tracking

—

Technical readout

Every ± is a 95% confidence interval (1.96 × standard error) computed from the spread between accepted frames. It describes the precision of this instrument on this session — not biological variation in your skin.

These are cosmetic measurements, not a medical assessment. Lumen is a general wellness tool. The numbers above describe how your skin reflected light during one session — they are not clinical findings, they do not indicate any disease, and none of them should be read as a diagnosis. Lumen is not intended to diagnose, treat, cure or prevent any condition, and it is no substitute for examination by a doctor.

It does not examine moles and does not screen for skin cancer. See a dermatologist promptly about any mole or lesion changing in asymmetry, border, colour, diameter, or that is evolving — and about any rash, pain, or sore that does not heal. Persistent redness, burning or flaking can have medical causes such as rosacea, eczema or seborrhoeic dermatitis, which this tool cannot distinguish from ordinary variation.

No login, no account, no upload. Every frame is captured and analysed inside your own browser, on your own phone, laptop or tablet. No image, video or measurement leaves that device, because the page contains no code capable of sending one — there is no server, no database, no account, no tracking and no analytics. Your last score is kept in this browser's local storage so the tool can show change over time; "Erase stored history" removes it. The face-detection model and the page fonts are downloaded from public content networks (jsDelivr and Google Fonts) when the page first loads; those requests carry your IP address, as any web request does, but no image and no measurement.