FORMULASI DAN EVALUASI SEDIAAN FACIAL WASH EKSTRAK KULIT BUAH NAGA (HYLOCEREUS POLYRHIZUS) SERTA UJI AKTIVITAS ANTIBAKTERI TERHADAP STAPHYLOCOCCUS AUREUS

Abstract

This study aimed to formulate and evaluate the quality of a facial wash containing red dragon fruit peel extract (Hylocereus polyrhizus) and to determine its antibacterial activity against Staphylococcus aureus. The study employed a qualitative descriptive approach through laboratory-based formulation and evaluation. The research stages included preparation of red dragon fruit peel extract, formulation of facial wash with several extract concentrations, evaluation of physical characteristics including organoleptic properties, homogeneity, pH, viscosity, foaming ability, and stability, followed by antibacterial activity testing against Staphylococcus aureus. The results indicated that the facial wash formulations possessed acceptable physical characteristics, showing homogeneous texture, stable appearance, appropriate pH compatible with skin physiology, adequate viscosity, satisfactory foaming capacity, and good stability during storage. Furthermore, the formulations exhibited antibacterial activity against Staphylococcus aureus, indicating that the bioactive compounds in red dragon fruit peel extract remained effective after incorporation into the facial wash formulation. These findings suggest that red dragon fruit peel extract has considerable potential as a natural active ingredient in facial wash products, providing both cleansing and antibacterial effects while promoting the utilization of agricultural waste as a value-added cosmetic ingredient.