Citronella oil is a popular essential oil known for its fresh, lemony scent and its use as an insect deterrent. People use it in candles, sprays, diffusers, and thin topical blends to cut down on mosquito bites and to freshen outdoor spaces. Below I’ll explain how to use it safely, how to mix your own repellents, and what to watch for.
Always dilute citronella oil before putting it on skin. A common safe adult dilution is 1–2% for regular use and up to 3% for short-term use. That means: for a 30 ml carrier (like sweet almond or fractionated coconut oil), add about 6–12 drops of citronella (roughly 2% = 12 drops). Do a patch test on a small skin area and wait 24 hours for irritation. Avoid using on broken skin or near the eyes and mouth.
Don’t let children or pets lick treated areas. Keep the oil away from cats and small animals — many essential oils can harm pets. If you’re pregnant, breastfeeding, or on medication, ask a healthcare provider before using essential oils.
Simple Citronella Spray (outdoor use): Mix 100 ml witch hazel or vodka with 20–30 drops citronella oil and 10 drops lavender or eucalyptus for extra scent. Shake before each use and spray around seating areas or on clothing (not face).
Topical Roll-On (personal use): In a 10 ml roll-on bottle, fill with carrier oil and add 15–20 drops citronella. Apply to wrists, ankles, and behind knees. Reapply every 2–4 hours as needed.
Diffuser or Candle Boost: Add 3–5 drops to an electric diffuser or a few drops to a neutral candle base. For outdoor gatherings, place multiple diffusers or citronella-based candles around the perimeter to reduce mosquitoes in the immediate area.
Storage and buying tips: Choose 100% pure citronella essential oil labeled with the botanical name (Cymbopogon nardus or Cymbopogon winterianus). Look for GC/MS testing on the label or supplier page — that shows the oil’s composition. Store bottles in a cool, dark place and keep lids tight. Essential oils are flammable, so store away from heat sources.
Quick safety reminders: do a patch test, dilute before skin use, keep away from children’s faces and pets, and stop use if you get a rash or feel unwell. Citronella can help reduce bites and make time outside more pleasant, but it’s not a medical treatment for insect-borne illnesses — use proven protective measures when needed.
Want a ready-made option? Look for products from reputable brands that list citronella percentage and purity. If you prefer DIY, keep recipes simple, measure carefully, and you’ll have a practical, pleasant-smelling way to cut down on pests this season.
