Journal of Cosmetic Science The Official Journal of the Society of Cosmetic Chemists Volume 72 No. 1 | January/February 2021 ORIGINAL ARTICLES Formulation and In Vitro and In Vivo Assessment of Natural Emulgel Containing Lemongrass Essential Oil Abdel Naser Zaid, Nidal Jaradat, Ramzi Shawahna, Fatema Huseen, Ahmad M. Eid, Alaa Attoun, Abeer Sandouka, Talal Abed Alhadi, Tharaa Hilal, Wissal Aqtash | pp. 1 Application of Combinatorial Methods for the Identifi cation of Synthetic Hair- Conditioning Polymers Thomas H. Kalantar, Mladen Ladika, Tatiana V. Drovetskaya, Adam Safi r, Steven Zong, Xinnan Zhang, Susan L. Jordan | pp. 17 Skin Penetration of Hazardous Air Pollutants in Presence of Antipollution Cosmetics Soraya Pontes-López, Ana Gonzálvez, Francesc A. Esteve-Turrillas, Sergio Armenta | pp. 33 Design and Evaluation of Topical Antioxidant Nanogel Formulations Gökçe Tetik, Seda Rençber, Ezgi T. Özoğlu, Evren A. Yapar, Sinem Y. Karavana, Özgen Özer | pp. 47 Identifi cation of the Underlying Genetic Factors of Skin Aging in a Korean Population Study Jung Oh Kim, Boreum Park, Joung Yoon Choi, So Ra Lee, So Jin Yu, Myeongjin Goh, Haekwang Lee, Won-Seok Park, In Soo Suh, Dae-Seung Koh, Kyung-Won Hong | pp. 63

Luxury Cues of Cream Heighten the Reward Value of Its Tactile Experience Naoyasu Hirao, Madoka Noriuchi, Hiroko Isobe, Yoshiaki Kikuchi | pp. 81 Review Articles Fate of Alkyl Polyglucosides in the Environment Rachna Rastogi | pp. 91 A Review of Permanent Waving and Perm Chemistry Trefor Evans | pp. 99