The plant known as bitter melon (Momordica charantia L.) which thrives in the lowlands of the tropics contains alkaloids, saponins, triterpenoids, and flavonoids that are good for the skin. The purpose of this study was to determine whether foundation cream preparations that have humidity activity at certain doses and do not irritate facial skin can be made using ethanol extract of bitter melon fruit flesh. The test material of this study was bitter melon (Momordica charantia L.) flesh which was prepared into foundation cream formulations with concentrations of 1.5%, 2%, 2.5%, and blank using maceration process and 96% ethanol solvent. Physical quality examination of the preparation was conducted as part of the examination. The results showed that bitter melon (Momordica charantia L.) pulp can be quickly made into a homogeneous foundation cream with a stable oil-in-water (O/A) emulsion type and a pH range of 5.8. -6.3, 5.7-6.2, and none of the foundation cream products containing bitter melon pulp ethanol extract irritated the facial skin after the cycling test. The preparation with a concentration of 1.5% is the optimal preparation and preparation concentration of 2.5% is recommended.