School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, Ribeirão Preto, SP, Brazil.
School of Pharmaceutical Sciences, University of Campinas (UNICAMP), Campinas, SP, Brazil.
J Cosmet Dermatol. 2022 Feb;21(2):729-739. doi: 10.1111/jocd.14113. Epub 2021 Apr 12.
The initial contact of consumers when choosing sunscreens is through the trademark, packaging, perfume, and tactile feeling of the product, outlining the popular practice of sensory science.
To describe the sensory and physical-mechanical profile of commercial sunscreens through sensory and instrumental analyses related to principal component analysis (PCA).
Seven commercial sunscreens available on the Brazilian market and with a solar protection factor (SPF) of 30 were evaluated. Physical-mechanical profiling (rheological and textural analyses) was conducted by a trained panel, followed by sensory profile characterization and descriptive analysis. The results were assessed using the Spearman correlation coefficient and PCA.
The correlation or lack thereof of the instrumental parameters with most of the sensory aspects was demonstrated using the Spearman coefficient. PCA enabled us to identify the nature of the dissimilarities among the samples.
The obtained results highlight the importance of descriptive sensory analysis in the research and development of sunscreens, evidencing the significance of precisely informing the products' formulation in order to be chosen by the consumer.
消费者在选择防晒霜时的最初接触点是通过商标、包装、香味和产品的触感，这概述了感官科学的流行做法。
通过与主成分分析（PCA）相关的感官和仪器分析，描述商业防晒霜的感官和物理机械特性。
评估了七种市售防晒霜，其防晒因子（SPF）为 30。通过训练有素的小组进行物理机械分析（流变学和质地分析），然后对感官特性进行特征描述和分析。使用 Spearman 相关系数和 PCA 评估结果。
Spearman 系数证明了仪器参数与大多数感官方面的相关性或缺乏相关性。PCA 使我们能够识别样品之间差异的性质。
研究结果强调了描述性感官分析在防晒霜研发中的重要性，证明了准确告知产品配方的重要性，以便被消费者选择。
