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Journal of Cosmetic Science The Official Journal of the Society of Cosmetic Chemists Volume 71 No. 6 | November/December 2020 ORIGINAL ARTICLES Detection and Analysis of Ceramide in Skin and Blood in a Healthy Chinese Population Cong Xin, Yaochi Wang, Yuling Chang, Shasha Cheng, Bo Zhang, Sen Yang | pp. 367 Antibacterial Activity of Senkyunolide A Isolated from Cnidium Officinale Extract Tae Y. Kim, Hyuk C. Kwon, Sang Y. Lee, Chun M. Lee, Kwang S. Lee, Kun K. Lee | pp. 377 A Topical Depigmentation Program Against Hyperpigmentation Enhances the Benefi ts of Previously Performed Chemical Peeling Procedures of the Face Maurizio Cavallini, Fabio Montanaro, Marco Papagni | pp. 385 Objective Methods for Quantifying Color Retention and Bleeding Potential of a Lipstick Through Large-Scale Panel Perception and Controlled Usability Studies Di Qu, Alyssa Johncock, Jianwei Liu | pp. 399 Determination of Required HLB Value for Citrus unshiu Fruit Oil, Citrus unshiu Peel Oil, Horse Fat and Camellia japonica Seed Oil Yu-Yeon Lee, Kyung-Sup Yoon | pp. 411