Formulation Development and Quality Evaluation of a Topical Cream Containing a Polyphenol-Rich Extract from Spilanthes acmella Murr. Trop J Nat Prod Res [Internet]. 2025 Dec. 31 [cited 2026 Jan. 1];9(12):6190 – 6196. Available from: https://www.tjnpr.org/index.php/home/article/view/7946