Long Wavelength Ultraviolet A1 and Visible Light Photoprotection: A Multimodality Assessment of Dose and Response
Kohli I, Braunberger TL, Nahhas AF, Mirza FN, Mokhtari M, Lyons AB, Kollias N, Ruvolo E, Lim HW, and Hamzavi IH. Long Wavelength Ultraviolet A1 and Visible Light Photoprotection: A Multimodality Assessment of Dose and Response. Photochem Photobiol 2019.
Photochemistry and photobiology
Human skin is exposed to visible light (VL; 400-700 nm) and long wavelength ultraviolet A1 (UVA1) radiation (370-400 nm) after the application of organic broad-spectrum sunscreens. The biologic effects of these wavelengths have been demonstrated; however, a dose response has not been investigated. Ten subjects with Fitzpatrick skin phototype IV-VI were enrolled. Subjects were irradiated with 2 light sources (80-480 J/cm
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