## 3 Results and Discussion
### Sensorial Analysis of Formulations
#### 3.4.2 Color Analysis of Formulations  
The majority of the volunteers answered that the color of Unl-ME was indifferent or pleasant, while the incorporation of LEE into the ME originated an equal distribution in the answers. Many volunteers referred that the liquid aspect and the yellowish color of LEE-ME originated an unpleasant formulation, although the physical aspect of formulation was not the focus of this work. However, after being informed about the composition of LEE-ME (LEE-ME (AI)), there was a reduction of the answers unpleasant and slightly unpleasant, and an increase in the number of answers indifferent, pleasant and very pleasant (Figure 6A). Regarding the likelihood of buying a body cream, a face cream and a shampoo with the color of ME, it is possible to observed that Unl-ME presented higher percentage of answers \"quite likely\" and low percentage of answers \"would never buy\" than LEE-ME (Table S3 of Supplementary Material). Nevertheless, the percentage of answers \"quite likely\" increased, while the percentage of answers \"would never buy\" and \"quite unlikely\" reduced for LEE-ME (AI) comparatively to LEE-ME. On the other hand, the likelihood of buying a toothpaste was lower for all ME (the sum of answers \"would never buy\" and \"unlikely\" totalize more than 80%). This study suggests that the color conferred by the LEE originated a broad classification (from unpleasant to pleasant), but the information about the composition of LEE-ME changed the classification in a positive way, as well as the likelihood of buying some cosmetic products with the color of LEE-ME. The color in all macroemulsions was classified as pleasant or indifferent. Three volunteers answered that the color of LEE-Macro was slightly unpleasant, but after information about the composition of LEE-Macro (LEE-Macro (AI)), the number of answers very pleasant increased and none of the volunteer answered slightly unpleasant (Figure 6B). The acceptability of the color of macroemulsions was also evaluated by measuring the likelihood of buying different cosmetic and personal care products. The likelihood of buying face and body creams with the color of Unl-Macro was higher than the LEE-Macro: the percentage of answers \"quite likely\" and \"would buy\" were almost the double for Unl-Macro (Table S3 of supplementary material). The presence of color also reduced the likelihood of buying a shampoo: the percentage of answers \"would buy\" had a reduction of 16% in the case of LEE-Macro when compared to Unl-Macro. Nevertheless, in the case of LEE-Macro (AI) it was possible to observe an increase in the answers \"would buy\" for the face cream, body cream and shampoo. Regarding the likelihood of buying toothpaste with the color of macroemulsions, Unl-Macro presented a high likelihood than LEE-Macro and LEE-Macro (AI), indicating that the yellow color of macroemulsions negatively influenced the acceptability of toothpastes, even when the color had been classified as pleasant. Although macroemulsions either with a white or yellowish color presented a pleasant color,there is a higher likelihood of commercializing white cosmetic products. The information about the composition of the LEE-Macro and the benefic skin effect can be useful for the product acceptability by the consumers.