This botanical profile is part of the Star Naturals Herbal Library.
Citronella
Cymbopogon nardus / Cymbopogon winterianus
Historical / Folk Use
Citronella has long been used in tropical regions of Asia as an aromatic grass valued for its bright citrus scent. Traditionally, it was widely used in outdoor preparations such as oils, sprays, and candles intended to discourage mosquitoes and other insects. Its fresh, lemony aroma made it a popular addition to household and garden blends designed to support more comfortable time outdoors.
Energetics
Traditionally described as:
• Bright, citrusy, and uplifting
• Cooling and activating
• Refreshing and clarifying to senses
• Invigorating and clean
• Protective in tone
Research & Resources
The research summaries below highlight findings from scientific studies on compounds found in this botanical.
They are provided for educational purposes and do not represent claims about the effects of Star Naturals products.
Study 1:
Citronella essential oil has a long history of use as a botanical mosquito repellent, and it has been registered by the U.S. EPA for this purpose. Some early research associated citronellol and related constituents with mosquito‑deterring properties.
Study 2:
Laboratory and field research has associated citronella oil with repelling mosquitoes for limited periods in conditions where the oil is applied to skin or used in formulated products.
Study 3:
Citronella oil and its major component citronellal were also associated with antifungal and antibiofilm effects against Candida species in controlled laboratory assays, including inhibition of hyphal growth and mature biofilms.