Sunscreen Remanence on the Skin: A Noninvasive Real-Time In Vivo Spectral Analysis Assessing the Quenching of Specular Ultraviolet A Light Reflectance

August 2015 in “ Journal of Cosmetic Dermatology ”

Gérald Pierard, Diana Khazaka, G Khazaka

sunscreen UVA blockers follicular fluorescence porphyrin Visiopor Visioscan sunblock sun cream

TLDR Sunscreens with UVA blockers effectively reduce skin fluorescence for several hours.

The study assessed the remanence of sunscreens on the skin using the Visiopor® and Visioscan® devices to measure the quenching effect on follicular fluorescence caused by UVA blockers. Results showed that all tested suncare products with UVA blockers effectively reduced porphyrin-related follicular fluorescence on facial skin, with the effect lasting for several hours. Variations in fluorescence recovery were attributed to the quantity of sunscreen applied and the formulation's components.

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Sunscreen Remanence on the Skin: A Noninvasive Real-Time In Vivo Spectral Analysis Assessing the Quenching of Specular Ultraviolet A Light Reflectance

Research cited in this study

research Weathering of the Hairless Scalp: A Study Using Skin Capacitance Imaging and Ultraviolet Light-Enhanced Visualization

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