Therapeutic response of cysteamine in the treatment of melasma. Research, Society and Development, [S. l.], v. 9, n. 6, p. e75963468, 2020. DOI: 10.33448/rsd-v9i6.3468. Disponível em: https://rsdjournal.org/rsd/article/view/3468. Acesso em: 5 dec. 2025.