Background: Lip balm moisturizes the lips and can be made from natural ingredients such as mango rhizome extract (Curcuma mangga Val), which is rich in antioxidants. Objective: This study aims to evaluate the formulation of lip balm with varying concentrations of mango rhizome extract and determine its optimal concentration. Methods: The research employs a qualitative and quantitative approach using 1 Kg of mango rhizome simplisia from Southeast Sulawesi. The lip balm formulations include extract concentrations of 0%, 5%, 10%, and 15%, involving ingredients such as mango rhizome extract, cera alba, olive oil, glycerin, BHT, nipasol, strawberry essence, D & C Red 6, and vaseline album. Evaluation was conducted through organoleptic tests, pH, homogeneity, adhesion, spreadability, melting point, cycling test, moisture, irritation, and panelist preference. All formulations demonstrated stability in color, texture, and aroma at room temperature and during the cycling test. Consistency, homogeneity, and pH of all formulas remained stable. Results: Spreadability and adhesion improved with the concentration of the extract, with Formula F3 (15% extract) showing the best results, including an increased melting point indicating thermal stability. All formulas were safe and did not cause irritation. Preference tests indicated that F3 was preferred for moisture, while F1 and F2 were favored for aroma and color. Conclusion: The mango rhizome extract lip balm is stable, safe, and effective as a lip moisturizer, with Formula F3 being the most effective. Future research is expected to develop other formulations from mango rhizome to enhance moisturizing effects while maintaining the stability of the preparation.