Lemon essential oil can be diluted and applied topically to your skin, as well as diffused into the air and inhaled. Some people swear by lemon essential oil as an ingredient that fights exhaustion, helps with depression, clears your skin, kills harmful viruses and bacteria, and reduces inflammation. Camphor oil is the oil extracted from the wood of camphor trees and processed by steam distillation. It can be used topically to relieve pain, irritation, and itching. Camphor is also used to relieve chest congestion and inflammatory conditions. It has a strong odour and taste and is easily absorbed through the skin.Orange essential oil is extracted from the rind of the sweet orange, Citrus sinensis. This is done by a method called cold pressing, which uses pressure to squeeze the oils from the rind. Sometimes, the leaves and flowers from the orange plant can be used as well. Antibacterial and antifungal properties of this oil are great for skin, especially if you commonly suffer from bacterial conditions such as acne or fungal conditions such as athletes foot.Olive oil comes from olives, the fruit of the olive tree. Olives are a traditional crop of the Mediterranean region. People make olive oil by pressing whole olive. It is used in cosmetics, medicine, soaps, and as a fuel for traditional lamps.