Mercola Premium Products 1 Ounce Essential Oils Organic Citronella Essential Oil (Cymbopogon winterianus) yields a pungent, musky, and citrus-like aroma. This freshening, clarifying, and purifying oil is steam distilled from fresh and dried citronella stems and leaves. The statements and claims made on this site have not been evaluated by the Food and Drug Administration. These products are not intended to diagnose, treat, cure, or prevent any disease.