576 JOURNAL OF COSMETIC SCIENCE TREATMENT EFFECT As shown in Figure 7, more than 80% of the subjects treated for 2 weeks recognize that the product has an anti-oil effect and reduced noninflammatory skin lesions. More than 90% of the subjects treated for 2 weeks felt that the skin inflammation lesions were reduced. Most subjects showed great interests in using the product due to its pleasant, satisfactory, and effective performance. After 4 weeks of usage, more than 90% of the subjects still consider the product to have an anti-oil effect, reduced skin inflammatory lesions, and reduced noninflammatory lesions and, as a result, are willing to continue to use it. Detailed parameters for evaluating the treatment effects are seen in Table III. COMFORT AND TOLERANCE EVALUATION As shown in Figure 8, more than 80% of the subjects treated for 2 weeks recognized that the product does not cause skin stickiness, while more than 90% of the subjects felt comfortable without any tingling and greasiness feeling. All subjects stated that the product does not cause pimples, swelling, or tension. After 4 weeks of use, more than 80% of the subjects stated that the product does not cause skin stickiness, while more than 90% of subjects Table II Parameters for Immediate Trait Evaluation Parameters 1 2 3 4 The product is not greasy Totally disagree Sort of disagree Agree a little Totally agree The product is not sticky Totally disagree Sort of disagree Agree a little Totally agree The product is very comfortable Totally disagree Sort of disagree Agree a little Totally agree The product is easy to apply Totally disagree Sort of disagree Agree a little Totally agree The product is easy to absorb Totally disagree Sort of disagree Agree a little Totally agree Figure 7. Evaluation of therapeutic effect.
577 ANTI-ACNE PERFORMANCE OF COSMETIC SKINCARE PRODUCTS felt comfortable. All subjects stated that the product does not cause pimples, swelling, or tension. Detailed parameters for comfort and tolerance evaluation can be seen in Table IV. CONCLUSIONS A 4 week clinical trial indicated that the product has promising anti-acne properties. The results of this trial show that the products can effectively improve the moisture content of the cuticle and the moisture supplement of the skin, relieve dryness of the skin, and thereafter enhance the ability of the skin to resist external stimulation. At the same time, it can also regulate the skin oil secretion, reduce the proportion of pore and porphyrin area, and reduce the a value. The clinical evaluation shows that the number of acne, including Table III Parameters for Treatment Effect Parameters 1 2 3 4 Thanks to this product, my skin has fewer inflammatory lesions Totally agree Agree a little Sort of disagree Totally disagree Thanks to this product, my skin has fewer noninflammatory lesions Totally agree Agree a little Sort of disagree Totally disagree The product has proven its ability to resist oily skin Totally agree Agree a little Sort of disagree Totally disagree The product is a pleasure to use Totally agree Agree a little Sort of disagree Totally disagree I will continue to use this product Totally agree Agree a little Sort of disagree Totally disagree The product is generally satisfactory Totally agree Agree a little Sort of disagree Totally disagree The product is generally effective Totally agree Agree a little Sort of disagree Totally disagree Figure 8. Comfort and tolerance evaluation.
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