“Comparative Evaluation of Herbal Sunscreen Extracts Using the Lokapure SPF Equation: A Reassessment of Classical Mansur Spectrophotometric Data Using Syzygium Cumini Fruit Extract ”. 2026. Journal of PhytoPharmaceutical and Advanced Chemistry 1 (02): 122-35. https://doi.org/10.66220/b4rdph29.