کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
31453 | 44790 | 2012 | 20 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Photostability of sunscreens Photostability of sunscreens](/preview/png/31453.png)
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.
► A comprehensive review of the photostability of physical and chemical UV-filters.
► The major photoreactions of these UV-filters individually and in combination.
► The impact on their photostability when used in combination (broad spectrum).
► The effect of the formulation, antioxidants and excipients on photostability.
► The importance of photostability testing for sunscreens, currently not mandatory.
Journal: Journal of Photochemistry and Photobiology C: Photochemistry Reviews - Volume 13, Issue 1, March 2012, Pages 91–110