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China Surfactant Detergent & Cosmetics ›› 2025, Vol. 55 ›› Issue (6): 715-722.doi: 10.3969/j.issn.2097-2806.2025.06.005

• Development and application • Previous Articles     Next Articles

Analysis of the influencing factors and study on the standardized operation of transepidermal water loss measurement

Fengling Chen1,2,Yaru Wang1,2,Rongzi Ye1,2,Jiaen Liang1,2,Jiaying Xie1,2,*(),Jianhua Tan1,2   

  1. 1. Guangzhou Quality Supervision and Testing Institute, Guangzhou, Guangdong 511447, China
    2. Collaborative Innovation Center for NQI-Quality Safety of Guangzhou, Guangzhou, Guangdong 511447, China
  • Received:2024-06-07 Revised:2025-05-13 Online:2025-06-22 Published:2025-07-01
  • Contact: E-mail: 47951945@qq.com.

Abstract:

The transepidermal water loss (TEWL) of human skin is affected by many factors. Different test schemes were designed to systematically compare the test results of the cheek and inner forearm and other areas of healthy subjects, and explore the influence of measurement methods, environmental conditions, test site, instruments and equipment on TEWL test results. The results show that different test methods (including different measurement modes, interval time between two measurement, subject waiting time and accumulated multiple measurements) affect the reproducibility of the test results, and TEWL test results are significantly different under different conditions of environment temperature and humidity that skin surface contact, facial test site and day and night time. There is a strong correlation between the test results of different types of TEWL instruments, but the test stability is significantly different. In this study, various factors affecting the measurement of transepidermal water loss are systematically analyzed, and a standardized operation method is established to provide reliable and scientific technical support for accurate evaluation of the efficacy of cosmetics.

Key words: transepidermal water loss, influencing factors, efficacy evaluation, standardization

CLC Number: 

  • TQ658