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Updated: Jun 11, 2025

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding

Generation of a Three-dimensional Full Thickness Skin Equivalent and Automated Wounding

Published on: February 26, 2015

A Highly Efficient and User-Friendly Sensitive Skin Model on the Forearm.

Jianhua Zhang^1,2, Shichao Liu^1,2, Wenjiao Guo^1,2

¹N.O.D Topia (GuangZhou) Biotechnology Co., Ltd., Guangdong, Guangzhou, China.

Journal of Cosmetic Dermatology

|October 9, 2024

Summary

A new forearm test combining tape stripping and capsaicin (FA-TS-CAT) offers a more efficient and comfortable alternative for sensitive skin research. This model provides reliable results for assessing sensitive skin treatments with greater subject willingness.

Keywords:

capsaicin test efficacy evaluation forearm sensitive skin model skin redness tape stripping

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Area of Science:

Dermatology
Cosmetic Science
Clinical Research

Background:

Sensitive skin affects a global population, with traditional assessment relying on the painful facial stinging test.
The facial stinging test has limitations including restricted site, pain, and aesthetic impact.

Purpose of the Study:

To develop and validate the forearm tape stripping and capsaicin test (FA-TS-CAT) as an efficient and user-friendly alternative to the facial stinging test.
To evaluate the FA-TS-CAT model's efficacy in simulating sensitive skin responses and assessing therapeutic outcomes.

Main Methods:

A randomized, double-blind, placebo-controlled trial involving 74 subjects.
Utilized tape stripping (5 times) and 10-minute capsaicin application on the forearm.
Measured skin redness (a* value) and transepidermal water loss (TEWL), alongside self-assessment questionnaires.

Main Results:

Optimal conditions for FA-TS-CAT were established.
FA-TS-CAT demonstrated consistent stimulation and natural recovery of a* value and TEWL, comparable to the facial capsaicin test (F-CAT).
The model showed high efficiency (3x F-CAT) and significantly improved subject willingness (95.95%) for sensitive skin testing.

Conclusions:

The FA-TS-CAT model is a highly efficient and user-friendly method for sensitive skin research.
It provides a reliable and valid approach for evaluating the efficacy of treatments for sensitive skin.
This alternative method overcomes the limitations of the traditional facial stinging test.