Issue 1, 2012

UVA filters in sun-protection products: regulatory and biological aspects

Abstract

This review of published in vitro and in vivo studies concerning the biological effects of ultraviolet A (UVA; 320–400 nm) radiation illustrates the evidence for combining UVA and UVB filters in sun-protection products. These data have led to the development of new sunscreens as well as methods to evaluate their efficacy. After listing the UVA filters available and briefly noting the requirements for a high SPF, broad-spectrum sunscreen, the methods for evaluating the level of UVA protection will be described. This article also summarizes several studies looking at the prevention of erythema, pigmentation, DNA damage, photoimmunosuppression, photoaging and photodermatoses. These data demonstrate in vitro and in vivo that only well-balanced UVA-UVB sunscreens, absorbing over the entire UV spectrum are able to prevent or significantly reduce the associated biological damage.

Graphical abstract: UVA filters in sun-protection products: regulatory and biological aspects

Article information

Article type
Perspective
Submitted
19 May 2011
Accepted
11 Aug 2011
First published
08 Sep 2011

Photochem. Photobiol. Sci., 2012,11, 81-89

UVA filters in sun-protection products: regulatory and biological aspects

A. Fourtanier, D. Moyal and S. Seite, Photochem. Photobiol. Sci., 2012, 11, 81 DOI: 10.1039/C1PP05152K

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