Thuja oil is an essential oil derived from the leaves and twigs of the Thuja occidentalis, also known as northern white cedar, eastern white cedar, or arborvitae tree. This tree is native to North America and can be found in Canada and the northeastern United States.

Thuja oil is steam-distilled from the fresh leaves and twigs of the tree, producing a clear to pale yellow liquid with a strong, woody and earthy scent. The oil is known for its antiviral, antifungal, and antiseptic properties, which make it a popular ingredient in natural health and beauty products.

The active compounds found in thuja oil include thujone, borneol, camphor, and pinene. These compounds are believed to have a number of therapeutic benefits, including the ability to soothe skin irritations, improve respiratory function, and boost the immune system.

It is important to note that thuja oil can be toxic if ingested or used improperly, and should only be used under the guidance of a qualified healthcare professional. It should not be used by pregnant women or individuals with liver or kidney problems.