Cologne is the term used on context of a perfume that is made in the style that originated in Cologne, Germany. It comprises of a mixture of citrus oils, including those of lemon, orange, tangerine, bergamot, lime, grapefruit and neroli, in a base of dilute ethanol. Apart from that, cologne can also have essential oils, like lavender oil, rosemary oil, thyme oil, petit-grain (orange leaf) oil and jasmine oil, in it. In today's world, cologne is considered almost a necessary application, especially before you step out of the house. In the following lines, we will tell you the proper way to apply cologne.