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Chromophore content in skin measured by hyperspectral imaging. (a) Mean melanin content. An increase in melanin content is measured following blue light irradiation. (b) Mean oxygen saturation. A peak in increased oxygen saturation is measured immediately after the blue light irradiation phase. (c) Mean haemoglobin content. A peak in increased haemoglobin content is measured immediately after the blue light irradiation phase. ***P < 0.001, **P < 0.01 all vs day 0.
