574 JOURNAL OF COSMETIC SCIENCE the product compared to the control group (p 0.05). It shows that the greasiness and skin pores are improved, and the skin moisture and comfort degree increased. IMMEDIATE TRAIT EVALUATION An immediate trait evaluation of all subjects is seen in Figure 6 with detailed parameters shown in Table II. Of the subjects, 57% totally agree that products do not show greasy performance, 27% agree a little, and only 16% disagree on it after using the product. For products that are not sticky, 33% of the subjects totally agree on the stickiness of products, 37% of subjects agree a little, 27% disagree, and only 3% totally disagree with it. Of the subjects, 50% totally agree that the product is comfortable, 40% of subjects agree a little, and only 10% disagree. When considering the easy-spread ability of the product, 63% of subjects totally agree on the easy-spread ability and 37% of subjects agree a little on it. Of the subjects, 57% totally agree on the easy-absorption of product, while 43% agree a little on it. In general, the subjects have a high acceptance for each trait of the product. The desired qualities of the products make it favorable for faster improvement of skin conditions, especially in the case of long-term skin conditions such as acne. Table I Acne Grade (A) and Pore Rating (B) A Average value p Acne grade W0 2.33 0.046* W2 2.20 W4 2.17 0.025* B Average value p Pore rating W0 3.47 0.001* W2 3.03 W4 2.67 0.000* *denotes a statistical significance (p 0.05) between data at different time points and base value. Figure 4. (A) Greasy degrees and (B) moist degrees. “*” indicates that the comparison between data at different time points and base value has statistical significance (p 0.05).
575 ANTI-ACNE PERFORMANCE OF COSMETIC SKINCARE PRODUCTS Figure 6. Product character assessment. Figure 5. Self-assessment of subjects. (A) Greasiness assessment, (B) pores, (C) moist degree, and (D) skin comfort. “*” indicates that the comparison between data at different time points and base values has statistical significance (p 0.05).
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