The The effectiveness of topical cysteamine in treating melasma: A systematic review and meta-analysis. Journal of Pakistan Association of Dermatologists, [S. l.], v. 33, n. 4, p. 1469–1484, 2023. DOI: 10.66344/jpad.33.4.2023.2317. Disponível em: https://www.jpad.com.pk/index.php/jpad/article/view/2317. Acesso em: 22 jul. 2026.