ananda, ardini, et al. “Optimization of Lip Balm Formulation Containing Beetroot Extract (Beta Vulgaris L.) With a Combination of Grapeseed Oil and Avocado Oil Using the Simplex Lattice Design Method”. JURNAL KESEHATAN, SAINS, DAN TEKNOLOGI (JAKASAKTI), vol. 4, no. 3, Jan. 2026, pp. 322-3, doi:10.36002/js.v4i3.4318.