Ultraviolet A transmission by modern sunscreens: is there a real risk?
Ultraviolet A transmission by modern sunscreens: is there a real risk?
复制标题
现代防晒霜的紫外线 A 传输：是否存在真正的风险？
DOI：
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发表时间：
1992
期刊：
影响因子：
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通讯作者：
F. Urbach
中科院分区：
文献类型：
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作者：
F. Urbach
In recent years it has been realized that ultraviolet A (UVA) is capable of inducing many of the same deleterious events as UVB. In addition to erythema, UVA can cause connective tissue damage and is photocarcinogenic. Recently, concern has arisen that new, higher potency sunscreens allow dangerous amount of UVA to reach the skin, because they allow prolonged outdoor exposure. Such concerns are unfounded. The problem lies in a misunderstanding of the concept of sunlight protection factor. This is purely a multiplication factor and does not indicate that the effect of transmitted UVR is due to UVA or UVB. Action spectra show that UVA is less, but certainly not more injurious to skin than UVB. There is no reason to believe that higher potency sunscreens enhance exposure to dangerous amounts of UVA.
