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Bulnesia Sarmientoi (Guaiac) Wood Oil

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Bulnesia Sarmientoi (Guaiac) Wood Oil

Bulnesia Sarmientoi (Guaiac) Wood Oil

Guaiac wood oil is a yellow essential oil with a rich, warm, and woody aroma with subtle hints of smoke and vanilla. It's derived from the wood of the guaiac tree (Bulnesia sarmientoi). We use this ingredient to add fragrance to some of our products.

Bulnesia sarmientoi is a species of slow-growing deciduous tree found in tropical regions of South America, particularly Argentina and Paraguay. Trees grow up to 18 meters tall, and are sometimes referred to by the common Spanish name 'Palo Santo', which translates to 'Holy Stick'. The fragrant heartwood can be steam-distilled to produce guaiac essential oil, which is widely used in perfumery and fragrance industries as a base note or fixative, adding depth and longevity to various scents.

In addition to its aromatic qualities, guaiac wood oil has been traditionally used for its therapeutic benefits. The oil has been utilized in natural medicine for centuries to alleviate various ailments such as joint and muscle pain, respiratory issues, and skin conditions. The oil's antimicrobial properties may help combat bacteria that contribute to skin issues, while its anti-inflammatory effects may aid in soothing irritation and redness. It's important to note that guaiac wood oil is generally well-tolerated; however, some individuals may have sensitivities or allergic reactions to the oil.

Bulnesia sarmientoi populations are known to be in decline due to threats from logging, farming and other habitat loss. It has been classed as endangered on the International Union for Conservation of Nature (IUCN) Red List of Threatened Species. The species is found in a number of protected areas in Argentina, Paraguay and Bolivia, and some restrictions are in place for trade and timber use. Conservation efforts to protect and sustain the population of the guaiac tree and its associated biodiversity should continue to be supported.

Botanical name: Bulnesia sarmientoi

Other names: Bulnesia Sarmienti Oil, Guaiacwood Oil

Chemical class: Essential Oils and Waters

Main constituents: Guaiol, Bulnesol, Hanamyol


Lopez Rodilla, Jesus & Silva, Lúcia & Martinez, N. & Lorenzo, Daniel & Davyt, Danilo & Castillo, L. & Giménez Mariño, Cristina & Cabrera, Raimundo & González-Coloma, A. & Zrostlíková, Jitka & Dellacassa, Eduardo. (2011). Advances in the identification and agrochemical importance of sesquiterpenoids from Bulnesia sarmientoi essential oil. Industrial Crops and Products - IND CROPS PRODUCTS. 33. 497-503. 10.1016/j.indcrop.2010.10.020.

Barstow, M. (2018). Bulnesia sarmientoi. The IUCN Red List of Threatened Species 2018: e.T32028A68085692. Accessed on 08 May 2023.

European Chemicals Agency (2022). Bulnesia sarmienti, ext. EC number: 289-632-8 | CAS number: 89958-10-1.

TGSC Information System (2023). Guaiacwood Oil.

INCI Name:
Bulnesia Sarmientoi Wood Oil
Ingredient origins:
Bulnesia Sarmientoi
Common name:
Oil of Guaiac
EWG score: The EWG score is a hazard score ranging from 1-2 (low hazard), 3-6 (moderate hazard) and 7-10 (high hazard) published by the Environmental Working Group. Their data is sourced from the Skin Deep® database and studies published in open scientific literature.