Salsabila, N.S., Annisa Fatmawati, Sundari Desi Nuryanti, Emelda, Ade Puspitasari and Latifa Amalia 2025. Formulation and SPF Evaluation of a Lip Oil Serum Combining Ethanol Extract of Butterfly Pea Flower and Lavender Oil. Media Farmasi Indonesia. 20, 2 (Oct. 2025), 165 - 175. DOI:https://doi.org/10.53359/mfi.v20i2.341.