RAMAHDANI, W.; ISKANDAR, B.; ANGGRAINI, D. Formulation and Evaluation of Sunscreen Cream Based on Titanium Dioxide and Zinc Oxide Nanopowders Combined with Niacinamide. KOLONI, [S. l.], v. 5, n. 3, p. 4134–4144, 2026. DOI: 10.31004/koloni.v5i3.1303. Disponível em: https://koloni.or.id/index.php/koloni/article/view/1303. Acesso em: 2 oct. 2026.