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通过2-mercaptonicotinoyl glycine引起的高能量可见光诱导色素的局部预防,但不是通过亚酸抗氧化剂: 2个随机对照试验
Virginie Piffaut1, Romain De Dormael1, Jean-Philippe Belaidi1
1L'Oreal Research and Innovation, Aulnay-sous-Bois, France.
Frontiers in pharmacology
|October 27, 2025
概括
高能量的可见光 (HEV) 会使多颜色变化恶化. 2-mercaptonicotinoyl glycine (2-MNG) 有效地降低了HEV诱导的色素,为治疗皮肤色素障碍提供了有色防晒的透明替代品.
科学领域:
- 皮肤病学 皮肤病学
- 摄影生物学 摄影生物学
- 化品科学 化品科学
背景情况:
- 暴露在阳光下,特别是紫外线和高能可见光 (HEV) 光线,会导致多发色素并加剧色素障碍.
- 目前对HEV光的光保护通常涉及颜料,由于色调和不透明性,这些颜料在化品上可能是不受欢迎的.
- 需要非染色活性成分来防止HEV诱导的色素.
研究的目的:
- 评估两种非染色生物活性剂在抵消HEV诱导的皮肤色素化的有效性.
- 评估阿斯科布酸 (7%) 和2-mercaptonicotinoyl glycine (2-MNG) (0.5%或1%) 对于它们减轻HEV诱导色素的潜力.
主要方法:
- 两项受控随机临床试验涉及58名具有菲茨帕特里克摄影型III或IV的个体.
- 在背部划分的皮肤区域上局部涂抹甲酸或2-MNG,然后每天暴露于HEV4天.
- 在HEV暴露之前,期间和之后使用色度计和视觉评分来评估色素.
主要成果:
- 与其载体相比,阿斯科布酸在限制HEV诱导的色素增多方面没有显著的有效性.
- 2-MNG (0.5%和1%) 显示了HEV诱导的色素显著和持续下降.
- 在早期时间点观察到2-MNG的剂量依赖作用,通过色度测量和视觉评估证实了这一点.
结论:
- 2-MNG是一种有效,透明的活性成分,可减轻HEV诱导的多颜色.
- 2-MNG提供了一种有前途的替代品,用于调色产品管理由HEV光加剧的色素问题.
- 2-MNG可以与传统的紫外线过器一起作为补充光保护剂.
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