Terpenes are naturally occurring aromatic oils that give plants their distinct smells. When you smell the scent of sage, lavender, lemongrass or cannabis, you’ve smelled terpenes at work. Many plants contain terpenes, such as lavender, rosemary, mint and citrus plants all have terpenes. The oils secreted in the flower’s sticky resin glands, also appear in many other herbs, fruits, and plants and they play a significant role in their therapeutic use and medicinal properties.

Hundreds of different terpenes have been identified by scientists (cannabis alone contains several hundreds terpenes,) although researchers have only extensively studied a handful of these to identify their health benefits, such as myrcenelinaloolcaryophyllenelimonene and pinene.