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A citrusy monoterpene found in cardamom and marjoram with antioxidant properties.
Alpha-terpinene is a monoterpene with a fresh, citrus-herbal aroma found in cannabis, tea tree oil, cardamom, and marjoram. It is one of several terpinene isomers and is valued primarily for its potent antioxidant properties.
Alpha-terpinene has demonstrated strong antioxidant activity in multiple studies, with research in the Journal of Agricultural and Food Chemistry confirming its ability to scavenge free radicals. It is a major component of tea tree essential oil, which has well-documented antimicrobial and antiseptic applications. The terpene has also shown some anti-inflammatory activity in preclinical models. Its presence in cardamom and marjoram connects it to culinary herbs long valued in traditional medicine systems.
Alpha-terpinene appears as a minor terpene in some cannabis strains, contributing fresh, herbal notes to the overall aroma. While it rarely dominates a cannabis terpene profile, its antioxidant properties may play a supporting role in the entourage effect. Strains with herbal, spicy, or tea-like aromatic characteristics may contain alpha-terpinene as part of their complex terpene ensemble. As expanded terpene panels become more common in cannabis testing, alpha-terpinene is being quantified and recognized more frequently.