Skin infections caused by pathogenic fungi are prevalent in many regions, leading to a growing need for effective and affordable treatment options. In this study, we explore the production and in vitro evaluation of two essential oils, Rosemary and Java Citronella, to assess their antifungal properties against common fungal skin infections. These infections, typically associated with dermatophytes of the Trichophyton and Microsporum species, often require aggressive treatments with potential side effects. The objective of this research is to investigate the antifungal efficacy of Rosemary and Java Citronella essential oils individually and in combination, with the aim of providing safer and more accessible alternatives to conventional antifungal therapies. We have examined the minimum inhibitory concentration (MIC) and zone of inhibition tests to evaluate the effectiveness of these essential oils and their combinations. The results demonstrate the potential of Rosemary and Java Citronella oils to treat a broad spectrum of fungal skin infections, with promising synergistic effects when used together. This study highlights the importance of considering natural essential oils as viable options for the treatment of fungal skin infections and advocates for further research in this area to harness their full therapeutic potential.