“Formulation and Topical Safety Evaluation of Zanthoxylum rhetsa Spray Containing Essential Oil from Pericarp: A Phase 1, Double-blind, Non-Randomized, Single-Arm Patch Test Trial”, Trop J Nat Prod Res, vol. 9, no. 10, pp. 4915 – 4926, Oct. 2025, doi: 10.26538/tjnpr/v9i10.31.