Terpinene is an aromatic but lesser known terpene found in cannabis, tea tree, and many other plants that emits a distinct piney, floral scent. The compound’s considerable antiseptic, antibacterial, and anti-inflammatory capabilities make terpinene a popular ingredient in soaps, industrial cleaners, disinfectants, and even insect repellents. While research into terpinene's therapeutic efficacy remains limited, animal studies indicate it acts as a compelling anti-inflammatory agent and antioxidant when administered in vivo. In particular, terpinene comprises a significant portion of the active ingredients in tea tree oil applied topically for treating acne, wounds, thrush, and even certain cancer tumors. In cannabis, it appears in concentrations up to 8% in certain strains and chemovars where it likely contributes more nuanced pine flavors alongside any functional entourage benefits.