Used primarily as a flavoring agent in alcoholic beverages, particularly in traditional spirits like absinthe, where it contributes to the drink's characteristic aroma and bitter taste. It is known for its psychoactive properties at high concentrations, which have led to both historical fascination and regulatory restrictions. Also found in essential oils of various herbs such as sage and wormwood, it serves in aromatherapy and traditional medicine, though its use is limited due to potential neurotoxicity. Occasionally used in research settings to study GABA receptor interactions in the central nervous system.