Zhang Jiaqi, Zhou Yi, Zhou Fangni, Li Xiang, Lu Ying, Wu Fan, Han Yuqing, Liu Qi, Chang Sisi, Zhu Wenjing, Li Bing, Pan Yao
Department of Cosmetics, School of Light Industry Science and Engineering, Beijing Technology and Business University, Beijing, China.
Shanghai Junyu Biotechnology Group Co., Ltd, Shanghai, China.
Int J Cosmet Sci. 2024 Oct;46(5):657-667. doi: 10.1111/ics.12946. Epub 2024 Feb 7.
Skin type has a strong influence on how sensitive skin develops, with oily skin accounting for a larger proportion of sensitive skin. However, there has not been a scientifically sound questionnaire for determining oily sensitive (OS)-type skin in prior studies.
In order to identify OS-type skin in the general population, we therefore intend to create an OS-type skin evaluation questionnaire, develop various thresholds through data analysis and classify skin based on two dimensions of sensitivity and oiliness.
A questionnaire with questions regarding subjects' basic information, skin oiliness and skin sensitivity was given to each individual who participated in the study (n = 1297). To define the thresholds for OS-type skin, receiver-operating characteristic (ROC) curves were generated. The results of the lactic acid stinging test (LAST) and noninvasive instrument information obtained were compared with the thresholds mentioned above to verify the effectiveness of this tool.
According to the ROC curves, questionnaire cut-off values of 11.5, 20.5 and 29.5 can be used to detect mildly, moderately and severely sensitive skin, respectively. In addition, the questionnaire cut-off values of 22.5 and 31.5 can be used to detect moderately and severely oily skin, respectively. According to our study, the four sensitive-skin groups' LAST scores differed significantly from one another, while the skin sebum levels differed significantly between the three oily groups. Additionally, the EI and LAST scores were significantly correlated with skin sensitivity levels, whereas sebum, moisture and EI were positively correlated with skin oiliness levels.
We developed an OS-type skin evaluation questionnaire that has been tested and shown scientifically to be a promising method for evaluating OS-type skin and to completely examine the traits of sensitive and oily skin.
皮肤类型对敏感性皮肤的形成有很大影响，油性皮肤在敏感性皮肤中占比更大。然而，以往研究中尚未有科学合理的问卷来判定油性敏感（OS）型皮肤。
为了在普通人群中识别OS型皮肤，我们打算创建一份OS型皮肤评估问卷，通过数据分析制定不同阈值，并基于敏感性和油性两个维度对皮肤进行分类。
向每位参与研究的个体（n = 1297）发放一份包含有关受试者基本信息、皮肤油性和皮肤敏感性问题的问卷。为了确定OS型皮肤的阈值，绘制了受试者工作特征（ROC）曲线。将乳酸刺痛试验（LAST）的结果和获得的无创仪器信息与上述阈值进行比较，以验证该工具的有效性。
根据ROC曲线，问卷截断值11.5、20.5和29.5可分别用于检测轻度、中度和重度敏感性皮肤。此外，问卷截断值22.5和31.5可分别用于检测中度和重度油性皮肤。根据我们的研究，四个敏感性皮肤组的LAST评分彼此差异显著，而三个油性组之间的皮肤皮脂水平差异显著。此外，EI和LAST评分与皮肤敏感程度显著相关，而皮脂、水分和EI与皮肤油性水平呈正相关。
我们开发了一份OS型皮肤评估问卷，经过测试并科学证明是一种评估OS型皮肤以及全面检查敏感性和油性皮肤特征的有前景的方法。
