Oil of Lemon Eucalyptus is an essential oil derived from the leaves of the Eucalyptus citriodora tree. It has a fresh, lemony scent and is commonly used in aromatherapy and natural products. The oil contains a compound called citronellal, which is known for its insect-repelling properties. In addition to its use as a natural insect repellent, Oil of Lemon Eucalyptus is also valued for its potential therapeutic benefits. It may help alleviate respiratory issues and provide relief from muscle pain when used in topical applications. However, it should be used with caution, as it can cause skin irritation in some individuals.