Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY C-PHOTOCHEMISTRY REVIEWS
Volume 13, Issue 1, Pages 91-110Publisher
ELSEVIER
DOI: 10.1016/j.jphotochemrev.2011.12.001
Keywords
Sunscreens; Photostability; Chemical UV-filters; Physical UV-filters; UV-protection
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Funding
- School of Pharmacy and Molecular Science at James Cook University
- James Cook University (FAIG)
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Sunscreens were originally designed to include mainly UVB-filters. Because of the deeper penetration of UVA light, causing photoaging and DNA damage, there has been a shift towards broad spectrum sunscreens. These broad spectrum sunscreens now include both UVA- and UVB-filters and other ingredients which possess antioxidant activity. Although sunscreens are regulated in most countries, photostability testing is not mandatory. Because of the ability of sunscreen ingredients to absorb UV-light and the complexity of most of these formulations, which may include more than one UV-filter, antioxidants and other formulation excipients, it is important that their photostability in combination is determined. (C) 2012 Elsevier B.V. All rights reserved.
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