Make homemade mosquito repellent by mixing an essential oil with a carrier oil or alcohol. Cinnamon oil, castor oil, eucalyptus oil and citronella oil are essential oils that repel mosquitoes.
- Choose the essential oil
Pick an essential oil for the mosquito repellent based on its fragrance and efficacy. Lemon oil, rosemary oil, eucalyptus oil or tea tree oil are essential oils that repel mosquitoes. Olive oil, witch hazel and sunflower oil are carrier oils that form the base for the repellent. Tea tree oil smells best when used alone; lavender enhances the fragrance of rosemary oil.
- Decide the batch size
Make a large amount of mosquito repellent by mixing 1 part of essential oil with around 10 parts of carrier oil or alcohol. To make a small batch, mix 10 drops of essential oil with 2 tablespoons of carrier oil or alcohol.
- Make the mosquito repellent
Make a strong mosquito repellent by mixing water and witch hazel in a 20:80 ratio. Add around 30 drops of eucalyptus oil, lemon oil, rosemary oil or tea tree oil. Put 1 teaspoon of vegetable glycerin in the mixture. Pour the mixture into a spray bottle. Use as required. Make a mild mosquito repellent that is suitable for children and pets by mixing 15 drops of peppermint oil or clove oil mixed with equal parts of water and witch hazel.
- Store leftover repellent
Store unused mosquito repellent in a dark bottle. Keep it away from sunlight or heat.