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Year : 2012  |  Volume : 78  |  Issue : 7  |  Page : 24--30

Need for a well-balanced sunscreen to protect human skin from both Ultraviolet A and Ultraviolet B damage

L'Oréal Research and Innovation, France

Correspondence Address:
Dominique Moyal
25-29 Quai Aulagnier - 92665 Asnieres sur seine
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0378-6323.97352

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Skin exposure to sunlight can cause many adverse effects. It is now recognized that both Ultraviolet A (UVA) and UVB wavelengths are responsible for the detrimental effects of solar radiation on skin. With our increasing knowledge on the harmful effects of UVA, the need for effective, well-balanced photoprotection has become more crucial. Numerous clinical studies showed that well-balanced sunscreen, with a SPF/UVAPF ratio ≤ 3, provide the most effective protection against pigmentation (especially on dark skin), DNA damage, UV-induced skin immunosuppression and photodermatoses. The calculation of UVA protection required in Asia revealed its particular importance in India, and gives clear evidence that the SPF value alone is not sufficient to evaluate the efficacy of a sunscreen.


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Online since 15th March '04
Published by Wolters Kluwer - Medknow