Essential oils are concentrated plant extracts that capture the natural fragrance and beneficial properties of the source plant. They are typically obtained through methods like steam distillation or cold pressing. These oils are used in various applications, including aromatherapy, cosmetics, and natural cleaning products, due to their potential therapeutic effects and pleasant scents. Each essential oil has its unique composition and benefits, often associated with specific plants, such as lavender for relaxation or peppermint for energy. While they are popular in holistic practices, it's important to use them safely and consult with professionals when necessary, as they can be potent and may cause reactions.