化妆品功效宣称应当具有充分的科学依据,化妆品功效评价试验是重要的评价手段之一,包括人体功效评价试验、实验室试验和消费者使用测试。消费者使用测试具有简易灵活、直接受众面广、采集信息量大的特点,相比于人体功效评价试验和实验室试验成本更低,还可为企业提供更多科学实用的消费者信息。介绍了《化妆品功效宣称评价规范》对于消费者使用测试方法的项目要求和技术导则,包括提出问题、明确所需信息、设计信息收集方法、组织和实施数据收集、整理与分析数据资料、报告和解释调研结果等测试步骤,以及样品、受试者、测试环境相关要求,重点就消费者人数的确定、测试方法的选择、数据分析方法和报告撰写要求进行了详细论述。为化妆品功效评价中的消费者使用测试试验设计提供参考,为化妆品功效宣称提供科学支持。
Cosmetic efficacy claims should have a scientific basis. Efficacy evaluation is one of the very important aspects for cosmetics, including human-body efficacy evaluation, laboratory test and consumer use test. Herein, relevant requirements for consumers to use test methods in “Cosmetics Efficacy Claim Evaluation Standards” have been introduced. Procedures of consumer use testing include asking questions, clarifying the required information, designing information collection methods, organizing and implementing data collection, sorting and analyzing data, reporting and interpreting survey results, etc. The preparation stage of consumer test needs to determine the selection and exclusion criteria of consumers, the number of consumers, complete the product safety evaluation, and determine the test plan. According to the purpose, the test method can be divided into qualitative test and quantitative test. According to the method, it can be divided into interview, questionnaire test and consumer diary. Data analysis methods can be divided into descriptive statistical analysis, regression analysis, and correlation analysis. Among them, methods of descriptive analysis are the most widely used, using general data, tabulation and graphs to make trend analysis, frequency analysis and dispersion degree analysis, etc. Finally, the functions, writing requirements and precautions of the report of consumer use testing, have been described, which can provide reference for the design of consumer use testing in cosmetic efficacy evaluation. In the future, consumer use testing will be closely linked with enterprises. It is an easy, efficient, and cost-effective testing method that is worthy of widespread adoption. In addition, it can also provide companies with more scientific and practical consumer information, and it can help companies develop markets, win consumers, and improve consumption levels, and avoid the blindness of corporate production. However, because there is no precise instrument for qualitative measurement, the data may be affected by consumer subjective factors, resulting in data that are not as objective as data from human-body efficacy evaluation test or laboratory test. To ensure the accuracy of the data to the greatest extent, it is necessary to grasp the selection of subjects, sample size, information collection method, organization and implementation of the experiment, statistical analysis of data, interpretation of results, etc. Thus it can provide scientific support for cosmetic efficacy claims and provide a reliable basis for product development and market positioning.
