Terpinolene

Terpinolene – PatientsCann UK Skip to main content Back to Terpenes Guide Terpinolene Delta-Terpinene pronounced: ter-PIN-oh-leen A rare, multi-layered scent. Piney, floral, and citrus all at once. Monoterpene Boiling point: 184°C Terpene type Monoterpene Boiling point 184°C Primary aroma Woody Key effect Uplifting Aroma profile How it Smells The aroma of terpinolene is described as: WoodyPineyHerbalCitrus Blossom Found naturally in: Apples, lilac, limes, nutmeg, tea tree, cumin Effects Linked Effects UpliftingFocusEnergyAntioxidant These effects are based on early-stage research in animals and cells. They are not proven in humans. Do not change your treatment based on this information. About What is Terpinolene? Terpinolene is one of the more unusual cannabis terpenes because it does not smell like just one thing. It has a complex, multi-layered aroma that mixes pine and wood with a hint of fresh flowers and citrus blossom. People often describe it as smelling like a spring garden. It is less common than myrcene or limonene and tends to appear as a dominant terpene only in certain sativa-leaning strains. When it is the dominant terpene in a strain, that strain usually has a distinctly fresh, bright character (Booth and Bohlmann, 2019). Effects in detail What the Research Says Terpinolene is most often associated with uplifting and energising effects. Unlike myrcene, which tends toward sedation, strains dominant in terpinolene are more likely to feel activating and mentally clarifying. Some users report improved focus and creativity. Nuutinen (2018) reviewed evidence for terpinolene’s antioxidant and possible anticancer properties in preclinical settings. It has also been found to have mild sedative effects in some animal studies at higher doses, which shows that the same terpene can have different effects depending on dose and context. Everyday sources Where You Find it in Daily Life Terpinolene is found in apples, giving them part of their fresh, slightly floral scent. Lilac flowers are particularly rich in it, as is nutmeg. Tea tree oil contains significant amounts of terpinolene, contributing to its sharp, medicinal smell. Limes contain more terpinolene than lemons, which partly explains why limes have a slightly more complex scent than lemons despite both being citrus fruits. Cumin seeds also contain it, alongside other spicy terpenes. Research Key Studies Nuutinen (2018) identified terpinolene as having notable antioxidant activity in cell studies, and noted potential antiproliferative effects in cancer cell lines in vitro. These findings are very early-stage and cannot be interpreted as evidence of a treatment or cure. The available evidence base for terpinolene is smaller than for myrcene or linalool. Weil (2022) highlights it as a terpene worthy of further investigation given its prevalence in certain strain profiles and its distinctive psychoactive character. LaVigne et al. (2021) found that terpinolene, like other cannabis terpenes, can modulate cannabinoid receptor activity. Previous Linalool Next Humulene Back to full Terpenes Guide Important: The information on this page is for education only. It is not medical advice. Terpene research is still in its early stages. Many studies have been done in animals, not yet in people. Always speak to your doctor before changing your treatment. PatientsCann UK does not recommend any specific cannabis product. References Booth, J.K. and Bohlmann, J. (2019) ‘Terpenes in Cannabis sativa: from plant genome to humans’, Plant Science, 284, pp. 67-72. doi: 10.1016/j.plantsci.2019.03.022. LaVigne, J.E. et al. (2021) ‘Cannabis sativa terpenes are cannabimimetic and selectively enhance cannabinoid activity’, Scientific Reports, 11(1), 8232. doi: 10.1038/s41598-021-87740-8. Nuutinen, T. (2018) ‘Medicinal properties of terpenes found in Cannabis sativa and Humulus lupulus’, European Journal of Medicinal Chemistry, 157, pp. 198-228. doi: 10.1016/j.ejmech.2018.07.076. Weil, M. (2022) ‘Most common cannabis terpenes and what they do’, Cannigma. Available at: https://cannigma.com/plant/a-brief-history-of-terpenes/ (Accessed: 29 May 2026).

Limonene

Limonene – PatientsCann UK Skip to main content Back to Terpenes Guide Limonene D-Limonene pronounced: LIM-oh-neen The bright, citrus terpene. Found in lemon peel and orange rind. Monoterpene Boiling point: 177°C Terpene type Monoterpene Boiling point 177°C Primary aroma Citrus Key effect Uplifting Aroma profile How it Smells The aroma of limonene is described as: CitrusTangyLemonOrangeZesty Sour Found naturally in: Lemon and orange peel, peppermint, rosemary, juniper Effects Linked Effects UpliftingCalmStress reliefFocus These effects are based on early-stage research in animals and cells. They are not proven in humans. Do not change your treatment based on this information. About What is Limonene? Limonene is the terpene responsible for that sharp, clean citrus smell. It is one of the most widely found terpenes in nature and is the main compound that gives lemon and orange peel their unmistakable scent. In cannabis, strains high in limonene often smell like a fresh citrus fruit or lemon sherbet. As a monoterpene, limonene is a relatively simple molecule that is highly volatile, meaning it evaporates quickly. This is why cutting a lemon releases that burst of smell almost immediately. In cannabis, limonene is often most noticeable in the first wave of aroma when a jar is opened (Booth and Bohlmann, 2019). Effects in detail What the Research Says Limonene is strongly associated with mood-lifting and stress-reducing effects. Laboratory studies have found it can reduce anxiety-like behaviour in animals (Nuutinen, 2018). Several clinical and preclinical studies suggest it may act on serotonin and dopamine pathways in the brain, which are linked to mood regulation. Research by Baram et al. (2022) found that limonene, like myrcene, can activate CB2 receptors. This means it is not merely adding aroma: it may interact with the body’s endocannabinoid system directly. Some studies also report anti-inflammatory and antioxidant properties at higher concentrations. Everyday sources Where You Find it in Daily Life Limonene is everywhere in the kitchen. The white pith and coloured skin of any citrus fruit contain high concentrations of it. Lemon-flavoured cleaning products almost always use limonene as the active fragrance ingredient, and it is approved as a food flavouring across the UK and EU. You will also find limonene in rosemary, juniper berries, and peppermint. It is used extensively in the fragrance industry and is one of the most commonly added flavours in food and drinks. Research Key Studies A key study by Russo (2011) highlighted limonene as a terpene with notable anti-anxiety and antidepressant potential based on animal and in vitro research. He proposed that the entourage effect partly relies on limonene interacting with serotonin receptors. Baram et al. (2022) later confirmed that limonene can activate endocannabinoid receptors at physiologically relevant concentrations. This was a significant finding because it moved limonene from a simple aromatic compound to a potentially pharmacologically active molecule in its own right. Previous Myrcene Next Alpha-Pinene Back to full Terpenes Guide Important: The information on this page is for education only. It is not medical advice. Terpene research is still in its early stages. Many studies have been done in animals, not yet in people. Always speak to your doctor before changing your treatment. PatientsCann UK does not recommend any specific cannabis product. References Baram, L. et al. (2022) ‘Major cannabis terpenes, applied individually and in combination, activate endogenous cannabinoid CB1 and CB2 receptors’, Frontiers in Pharmacology, 13, 1040962. doi: 10.3389/fphar.2022.1040962. Booth, J.K. and Bohlmann, J. (2019) ‘Terpenes in Cannabis sativa: from plant genome to humans’, Plant Science, 284, pp. 67-72. doi: 10.1016/j.plantsci.2019.03.022. Nuutinen, T. (2018) ‘Medicinal properties of terpenes found in Cannabis sativa and Humulus lupulus’, European Journal of Medicinal Chemistry, 157, pp. 198-228. doi: 10.1016/j.ejmech.2018.07.076. Russo, E.B. (2011) ‘Taming THC: potential cannabis synergy and phytocannabinoid-terpenoid entourage effects’, British Journal of Pharmacology, 163(7), pp. 1344-1364. doi: 10.1111/j.1476-5381.2011.01238.x.