Herb oils are concentrated extracts derived from various plants, often used for their aromatic and therapeutic properties. These oils are typically obtained through methods like steam distillation or cold pressing, capturing the essence of the herbs. Common examples include basil oil, rosemary oil, and peppermint oil, each offering unique scents and benefits. These oils can be used in a variety of applications, including aromatherapy, cooking, and natural remedies. They are often added to diffusers for relaxation or mixed into massage oils for soothing effects. However, it's important to use them safely, as they can be potent and may cause skin irritation if not diluted properly.