Eau de cologne is a type of fragrance that originated in the early 18th century in Cologne, Germany. It typically contains a lower concentration of aromatic compounds, usually around 2-5%, making it lighter and more refreshing than other perfumes. The scent is often citrus-based, featuring notes like lemon, bergamot, and orange, which contribute to its invigorating quality. Traditionally, eau de cologne is used as a body splash or aftershave, providing a quick burst of fragrance. It is popular for everyday wear due to its subtlety and ease of use, making it suitable for both men and women.