Herbal remedies on post acne hyperpigmentation. International Journal of Research in Pharmaceutical Sciences and Technology, [S. l.], v. 4, n. 1, p. 08–10, 2023. DOI: 10.33974/ijrpst.v4i1.343. Disponível em: https://rubatosis.org/journals/index.php/ijrpst/article/view/80.. Acesso em: 24 dec. 2025.