Pistacia lentiscus gum is a thick, film-forming and fragrant gum collected from Pistacia lentiscus trees. This substance is also called mastic gum and is used in skincare products as a thickener, adhesive, and film-forming ingredient.
The base of mastic gum is made up of a natural hydrocarbon polymer, which is insoluble in water. Its other compounds include triterpenes and a smoky, resin-scented essential oil.
In the cuisines of the Mediterranean region, mastic gum is used as chewing gum, spice, and flavor in liqueurs and desserts.
Science
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Pachi, V. K., et al. (2020). Traditional uses, phytochemistry and pharmacology of Chios mastic gum (Pistacia lentiscus var. Chia, Anacardiaceae): A review. Journal of ethnopharmacology, 254, 112485.