Essential oil blends are combinations of different essential oils designed to enhance their individual properties and create specific effects. These blends can be used for various purposes, such as promoting relaxation, boosting energy, or improving focus. Each oil contributes its unique aroma and therapeutic benefits, making the blend more effective than a single oil alone. Commonly used in aromatherapy, essential oil blends can be diffused into the air, applied topically when diluted, or added to bath products. Popular blends often include oils like lavender for calming effects, peppermint for invigoration, and tea tree for its cleansing properties.