← Vitiligo Research project

UV phototherapy — does it help, and how much?

Depigmented (unpigmented) skin, driven by this project's own executable cell model. Move the dose slider and watch what actually happens: too little does nothing, a real therapeutic dose slowly mobilizes the melanocyte stem-cell reservoir, and pushing past the erythema (burn) threshold makes things measurably worse, not better. The dose-response chart on the right is genuine model output from this project's test suite, not hand-drawn — and the facts panel below it is the real published clinical evidence, kept clearly separate from the model.

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0.55 therapeutic
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A single patch of vitiligo-affected (depigmented) skin. Color returns toward normal tone as the model's melanocyte fraction recovers — or bleaches further toward white/pink if the dose crosses into the burn range. Illustrative color mapping, not a photograph or a calibrated clinical prediction.

Solid line: pigmented-cell fraction at the current dose. Dashed line: no treatment, same starting skin, for comparison. Model ticks are relative units, not calibrated to real time — see the facts panel for the real published treatment timescale (usually months).

Live readout

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Pigmented
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Lesion
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Active stem cells
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Oxidative/burn stress

Model: final outcome by dose

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Model findings

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Real published evidence (NB-UVB)

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The chart and patch above are an in silico model prediction from this project's own illustrative cell model — relative units, not calibrated to real time, dose, or any individual's biology. It is a research tool, not medical advice. See a dermatologist for an actual UV phototherapy plan.