<![CDATA[Red rice bran (Oryza rufipogon Griff.) is rich in natural antioxidants, including flavonoids, phenolics, and anthocyanins, which offer potential benefits for topical skin care. This study aimed to formulate a sleeping mask containing red rice bran extract using Hydroxypropyl Methylcellulose (HPMC) as a gelling agent and to evaluate its physical characteristics and antioxidant activity. Three formulations were prepared with HPMC concentrations of 5%, 7%, and 9%, in addition to positive and negative controls. The extract was obtained by maceration using 40% acetone. Each formulation was evaluated for organoleptic properties, pH, homogeneity, spreadability, adhesiveness, viscosity, and stability, while antioxidant activity was assessed using the ABTS assay. Results showed that the 5% HPMC formula demonstrated optimal physical qualities (pH 6.02 ± 0.03, viscosity 25,253 ± 122.20 cP, spreadability 4.59 ± 0.12 cm, adhesiveness 2.89 ± 0.28 s), remained stable during storage, and exhibited 32% antioxidant inhibition at 60 ppm. This suggests that the red rice bran sleeping mask with 5% HPMC is a promising formulation for further development as a natural antioxidant-based skincare product.]]>
Copyrights © 2025
