Formulation of face wash gel containing Thai herbal extract microemulsion

Abstract

Keywords: Areca catechu L.; Curcuma longa L.; Garcinia mangostana L.; Oryza sativa L.; Face wash gel; Microemulsion

Objectives: The objective of this work was to prepare the face wash gel formulation containing Thai herbal extract based on microemulsion system. The visual observation of appearance, viscosity, pH value, stability, and contamination test were evaluated.

Methods: The face wash gel formulation composed of 10% w/w clear microemulsion system, 8.34% w/w HPMC E5, 30% w/w glycerin, 0.05% w/w lauric acid, 0.15% w/w  triethanolamine, 1% w/w paraben concentration, and purified water qs.to 100%. 1% w/w Thai herbal extract compound: Curcuma longa L., Areca catechu L., Oryza sativa L., and Garcinia mangostana L. in ratio of 1:1:1:1, respectively was incorporated into microemulsion system studied by our research group. The Thai herbal face wash gel formulation was studied the stability at 45±2ºC and heating/cooling condition, and then its appearance, viscosity, and pH value were determined. The Thai herbal face wash gel formulation was tested Staphylococcus aureus and Escherichia coli to detect the contamination.

Results: The Thai herbal face wash gel formulation was found that a brownish yellow in appearance by visual observation. Both fresh preparation and stability tested preparation showed good physical properties: pH value, viscosity, and no contamination of Staphylococcus aureus and Escherichia coli that was appropriately used to contact with the skin

Conclusion: This work reported that the Thai herbal face wash gel formulation had good physical properties which could be developed to new herbal cosmetic products.