期刊
SKIN PHARMACOLOGY AND PHYSIOLOGY
卷 27, 期 2, 页码 82-89出版社
KARGER
DOI: 10.1159/000351549
关键词
Ultraviolet protection; Sunscreen efficiency; Cosmetic skin pretreatment; Tape stripping; Ultraviolet/visible light spectroscopy
Sunscreens are a key pillar of the multimodal protection strategy against short-and long-term impacts of intermittent and continuous UV exposure. Hitherto, an unanswered part of current scientific discourse is the question whether a cosmetic pretreatment has an impact on distribution and adhesiveness of sunscreens on the skin and therefore affects UV protection. In order to evaluate the homogeneity of sunscreen filter distribution, water resistance as a parameter of adhesiveness and effective UV protection of sunscreens after a pretreatment with cream or lotion was investigated in 18 volunteers who were examined before and after swimming, using the established combination of the tape stripping procedure and UV/VIS spectroscopy. It was shown that a cosmetic skin pretreatment affects neither filter homogeneity nor effective UV protection prior to water contact. However, compared to nonpretreated skin, a considerable loss of water resistance is caused. Therefore, using a cream or lotion before application of sunscreens is not to be recommended. (C) 2013 S. Karger AG, Basel
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