Regulatory Challenges in Cosmeceuticals: The need for Comprehensive Harmonized Guidelines. International Journal of Pharmaceutical Drug Design, [S. l.], v. 2, n. 5, p. 38–43, 2025. DOI: 10.62896/ijpdd.2.5.04. Disponível em: https://ijpdd.org/index.php/files/article/view/270.. Acesso em: 1 sep. 2025.