Muhammad Shahzad Khan, et al. “FORMULATION AND CHARACTERIZATION OF ALKANNA TINCTORIA LOADED EMULGEL AND ITS IN VITRO AND IN VIVO EVALUATION AS A COSMECEUTICAL PRODUCT”. Journal of Population Therapeutics and Clinical Pharmacology, vol. 30, no. 18, Nov. 2023, pp. 2354-70, https://doi.org/10.53555/jptcp.v30i18.3306.