DSM Nutritional Products Ltd, Wurmisweg 576, 4303 Kaiseraugst, Switzerland.
UCL School of Pharmacy, 29-39 Brunswick Square, WC1N 1AX, London, UK.
Int J Cosmet Sci. 2020 Dec;42(6):632-636. doi: 10.1111/ics.12666.
Age-related differences in maturation parameters of corneocyte envelopes (size, hydrophobicity and rigidity) were examined at several facial test sites in young and old female Caucasians. In addition, the effect of topically applied niacinamide on these parameters was evaluated in a 4-week placebo-controlled study.
研究了年轻和老年白种女性面部几个测试部位的角质细胞包膜(大小、疏水性和刚性)成熟参数的年龄相关差异。此外,还在为期 4 周的安慰剂对照研究中评估了局部应用烟酰胺对这些参数的影响。