See what your skin is actually doing

DermaTwin measures tone, marks, texture and redness from one photo, tells you what the published evidence supports for skin like yours — and where that evidence does not exist — and shows a projection built from your own image rather than a stock face.

Take or choose a photo

Face a window or a lamp in front of you, not behind.
Flash off, no filter, beauty mode off.
Shoulders up, looking straight ahead.
Same place, same time of day for every photo after this one. Comparisons between photos taken in different light are mostly measuring the light.

I have something neutral grey or white in the bottom-left of the frame.
A grey card, a plain white sheet of paper, the back of an envelope. This is the single biggest thing you can do for the accuracy of your own numbers — without it, tone readings track your change well but are not absolute.

This photo is analysed in your browser and does not leave your device. There is no upload step here to opt out of — the page has no permission to send it anywhere.

What makes this different

Dermatology models lose a quarter to a third of their accuracy on deeply pigmented skin, and they lose it gradually — so it never looks like a failure. This engine is tested across all ten Monk skin tones on identical inputs, refuses to report redness where melanin physically drowns the signal, and ranks ingredients by efficacy adjusted for the risk of leaving marks, because in melanin-rich skin the treatment that irritates is the treatment that causes the problem.