Studies on Typification of Cosmetics

Application of Sensory Evaluation to Classify Milk Lotions

Abstract

For development of skin care products, the studies of their typification by sensory evaluation are very effective. At this point of view, we tried to classify milk lotions as follows.
At first, in order to explore classification scale of milk lotions, 10 well-known milk lotions were evaluated by round robin method about the difference of touch and skin feeling for each pair (45 pairs). As a result of data analysis by MDS, synthetic classification scale from light to rich was suggested.
Next, 134 samples were evaluated about 24 items by an expert, arranged with the synthetic classification scale from the data analysis by quantification, and categolized to 6 groups. These information from the classification were summerized visually as a chart.
At last, 24 samples were selected from the 134 samples, propriety of the synthetic classification scale was verified by mass panel test data, and as a physical classification method, their compressive stress were measured by tensipresser and the result was compared with sensory classification.