Citrus essential oils are distinguished by bright, sparkling, and invigorating aromas dominated by monoterpenes, particularly d-limonene (> 80%). They serve primarily as top notes in perfumery and diffusion blends.
- Lemon (Citrus limon): Displays a crisp, sharp, sour-sweet citrus aroma with light green undertones. It acts as a primary top note, providing high energy and clean atmospheric diffusion.
- Sweet Orange (Citrus sinensis): Characterized by a warm, juicy, sweet citrus profile with subtle fruity nuances. Its high volatility creates an immediate sense of warmth and mood elevation.
- Bergamot (Citrus bergamia): Offers a sophisticated, bittersweet citrus profile with a subtle floral twist and mild herbaceous depth. Highly valued as a top note in fine fragrances, though photosensitivity precautions are necessary when applied topically prior to sunlight exposure.
- Lime (Citrus aurantifolia): Delivers a sharp, tart, intensely vibrant tropical citrus scent with a crisp, refreshing finish.