This study examined the effects of a biweekly attendance of a commercial sunbed to different skin function parameters during a period of 6 weeks. All 100 test subjects were affected by a significant change of the urocanic acid concentration with a strong increase of the cis-isomers. After the completion of the irradiation cycles, there were neither a histological nor an immune-histochemical evidence of a coagulation of the epidermis or an occurrence of sunburn cells. The clinically visible augmentation of the tan of the experimentees could be verified chromatographically. This augmentation, however, did not correlate with an increase of the minimal erythema dose (MED).
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This study examined the effects of a biweekly attendance of a commercial sunbed to different skin function parameters during a period of 6 weeks. All 100 test subjects were affected by a significant change of the urocanic acid concentration with a strong increase of the cis-isomers. After the completion of the irradiation cycles, there were neither a histological nor an immune-histochemical evidence of a coagulation of the epidermis or an occurrence of sunburn cells. The clinically visible augme...
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