Terpenes are the fragrant oils that give cannabis its aromatic diversity.
They’re what give Blueberry its signature berry smell, Sour Diesel its funky fuel flavor, and Lavender its sweet floral aroma. These oils are secreted in the flower’s sticky resin glands, the same ones that produce THC, CBD, and other cannabinoids.
Terpenes are by no means unique to cannabis; they can be found in many other herbs, fruits, and plants as well.
Terpenes are useful to us as essential oils, with many uses in food and beverage, perfumes, industrial solvents, and medicine. Terpenes evolved in nature as a plant’s natural defense against predators (animals who would eat the plant, especially insect pests). Many terpenes double as insect repellent, in fact. In cannabis consumption, terpenes are part of the entourage effect, producing enhancements to the psychoactive effects of THC. Several terpenes have been indicated as relief for anxiety, depression, inflammation, and other maladies. Others just enhance the flavor or aroma, and still others produce a more alert or relaxed high.
They are part of a psychoactive process that top science research is only beginning to understand. By themselves, no identified terpene has a psychoactive effect. But some terpenes do bind to the cannabinoid receptors in the body, and several more help THC to be more fully absorbed. Additionally, terpenes have effects on the sensation of a THC high, enhancing or dampening it.
They can taste like any flavor in the plant kingdom, depending on the terpene. The range of terpene flavors includes citrus, spices, fruit, and earthen tones, just like beer or wine (which also – surprise! – involve terpenes). Since terpenes are found throughout nature in plants of every description, terpenes are responsible for most of the odor and taste in everything from fresh fruit to flowers to trees.
In the quantities represented by enjoying a cannabis plant, no. Also not in the quantities you’d encounter in your average sample of wax, rosin, shatter, or other extract, and also not in the quantities you’d find in any vape cartridge. In concentrated quantities, however, some terpenes are flammable and a very few of them can provoke allergic reactions or have adverse affects – but we’re talking about an industrial-size bottle of the pure terpene. Let’s put it this way: Everything in nature can kill you, even water, if you take too much of it.
For more information on individual cannabis terpenes, visit our terpene category.
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