A scoping review of methodologies opted for photoprotection of herbal formulation for the herbal sunscreen formulation: EVALUATION TECHNIQUES FOR PLANT-BASED SUNSCREENS. Indian Journal of Traditional Knowledge (IJTK), [S. l.], v. 25, n. 4, p. 309–325, 2026. DOI: 10.56042/ijtk.v25i4.22916. Disponível em: https://or.niscpr.res.in/index.php/IJTK/article/view/22916. Acesso em: 12 may. 2026.