Patchouli oil is an essential oil that is extracted from the leaves of the patchouli plant, which is native to tropical regions of Asia. It has a musky, earthy, and slightly sweet aroma that is believed to be grounding and calming. The oil is commonly used in perfumes, soaps, and other fragrances, as well as in aromatherapy. Patchouli oil is also believed to have a number of therapeutic properties, such as being an antidepressant, anti-inflammatory, and a sedative. It is also used to help with skin conditions such as eczema and psoriasis. Patchouli oil is commonly used to help with stress and anxiety, and can also be used as a natural insect repellent. It can be used topically, inhaled, or diffused, but should be used with caution as it can be irritating to the skin and mucous membranes.