“Formulation and Evaluation of an Anti-Acne Herbal Gel Using Ginkgo Biloba, Turmeric Extract, Bergamot Oil, and Vitamin E Oil”. International Journal of Pharmaceutical Drug Design 2, no. 5 (May 7, 2025): 30–37. Accessed January 21, 2026. https://ijpdd.org/index.php/files/article/view/269.