OPPY AESAIW. Formulation and Determination of Sun Protection Factor (SPF) of Sunscreen Gel Preparations Containing Epigallocatechin Gallate (EGCG) Using the Spectrophotometric Method. Strada Journal of Pharmacy, [S. l.], v. 1, n. 1, p. 26–31, 2019. DOI: 10.30994/sjp.v1i1.123. Disponível em: http://thesjp.org/index.php/SJP/article/view/123. Acesso em: 16 oct. 2025.