Linh Tran Vu Phuong*, Nga Nguyen Linh, Linh Phung Phuong and Inh Cam Thi 2026. Preparation and preliminary evaluation of a soothing gel containing Aloe vera and Perilla frutescens essential oil. Vietnam Journal of Science, Technology and Engineering. 68, 2 (Jun. 2026). DOI:https://doi.org/10.31276/VJSTE.2026.0008.