Essential oils are concentrated liquids extracted from plants, often through processes like distillation or cold pressing. These oils capture the scent, flavor, and beneficial properties of the plant they're derived from. They're called "essential" because they contain the essence of the plant's fragrance and characteristics. Essential oils have been used for various purposes, including aromatherapy, medicinal applications, skincare, and even household cleaning. Each essential oil has its own unique properties and potential benefits, ranging from promoting relaxation and reducing stress to providing relief from headaches or aiding digestion. However, it's essential to use them safely and appropriately, as they are potent substances and can cause adverse reactions if not used properly.