Extraction Mesmara citronella essential oil is extracted by the process of steam distillation from the leaves of cymbopogon nardus. Benefits of Mesmara citronella essential oil. No more insects, bugs and rodents after using citronella oil. It will make them all go away, naturally and peacefully. Applying citronella oil mixed with a carrier oil directly to the body is considered more effective for fighting bugs Mesmara citronella essential oil has a clean, fresh scent, its also a common ingredient in soaps, candles, incense, perfumes and cosmetics. You can deodorize your home, dishwasher, refrigerator and washing machine by diffusing citronella or running a very small amount through a cycle of your household appliances. One of the most popular uses for citronella oil is cleansing and conditioning the hair and scalp. It can help eliminate excess oil and greasiness of hair while also fighting dandruff and adding shine. Many people find it adds volume to hair, de-tangles knots and helps protect hair colour from sun damage. Add several drops to your shampoo or conditioner or try making your own using a cleansing oil like coconut oil, which also benefits hair. Pure citronella essential oil should never be used directly on your skin, as this may cause sensitivities. It should be mixed with a carrier oil. Once diluted, citronella oil can also be inhaled. Just place a few drops onto a cloth or tissue or using a diffuser caution for external use only keep out of reach of children. Avoid contact with eyes. Avoid use with sensitive or damaged skin. Do not use undiluted on skin. Discontinue use if skin irritation occurs. Do not drop oils directly in ear canal or eyes. Oils can dissolve plastics - use in glass. Do a 2-days patch test for even the gentlest essential oils before using them generally.