The name phellandrene refers to a pair of organic compounds that have similar chemical properties and molecular structures. Both α-phellandrene and β-phellandrene are cyclic monoterpenes and double-bond isomers. Both are miscible in ether but insoluble in water.

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α-Phellandrene gets its name from Eucalyptus phellandra (now called Eucalyptus radiata),¹ from which it can be isolated. It is also an element of the essential oil of Eucalyptus dives.

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α-Phellandrene has been found to reduce pain sensitivity and increase energy levels.² It also contains potential anti-cancer properties.³ It is easily absorbed, making it a common additive to a host of cosmetic products and fragrances because of it’s pleasing aromas.

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β-Phellandrene is widely distributed in essential oils (angelica, eucalyptus, lavandula, mentha, pinus species). β-Phellandrene has been found and isolated from the oil of water fennel and balsam oil. β-phellandrene has been described to have a minty and citrusy characteristic odor. β-Phellandrene is often used as a flavor ingredient.

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The phellandrenes have been a staple in holistic Eastern medicine for a long time, used for its antifungal and antibacterial properties.

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Before the phellandrenes were discovered, these compounds were assumed to be pinene and limonene due to their similar characteristics. The phellandrenes are most prominent in eucalyptus,⁴ but also found in herbs and spices including in allspice, lavender, black pepper, cinnamon, pine, mint, water fennel, dill, and cannabis.

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Phellandrene is found in the cannabis strains Trainwreck, Jack Herer,⁵ Ace of Spades, and SAGE.⁶