Comparative Evaluation of Herbal Sunscreen Extracts Using the Lokapure SPF Equation: A Reassessment of Classical Mansur Spectrophotometric Data Using Syzygium cumini Fruit Extract . J. Phytopharm. Adv. Chem. [Internet]. 2026 Jul. 29 [cited 2026 Oct. 24];1(02):122-35. Available from: https://jppac.in/index.php/jppac/article/view/36