“Formulation Development and Quality Evaluation of a Topical Cream Containing a Polyphenol-Rich Extract from Spilanthes acmella&Nbsp;Murr”. Tropical Journal of Natural Product Research , vol. 9, no. 12, Dec. 2025, pp. 6190 – 6196, https://doi.org/10.26538/tjnpr/v9i12.36.