Findings Looking into what sensory factors impact consumers' acceptability of nail polishes, the research team invited 98 females to participate in the study at the university Eight commercial products belonging to four categories. regular (REG), gel (GEL), flake (FLK) and water-based (WAT), were evaluated twice by each participant in two different tasks a task devoted to applying and evaluating the product and a task devoted to observing the appearance and evaluating the product.