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. 2020 Jun 22;15:133. doi: 10.1186/s11671-020-03348-3

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© The Author(s) 2020

Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 12 — Results of visual evaluation of skin—before use, after 4 weeks use, and after 8 weeks use of the test product and the control. Test product: 3.050 ± 0.887 before use, 2.95 ± 0.999 after 4 weeks use, and 2.75 ± 0.851 after 8 weeks. Control product: 2.900 ± 0.887 before use, 2.95 ± 0.945 after 4 weeks use, and 3.000 ± 0.918 after 8 weeks use. *¹The visual evaluation grade of wrinkles by professionals decreased significantly. *²The visual evaluation grade of wrinkles by professionals increased significantly