Cabreuva (Myrocarpus fastigiatus)
What Is Cabreuva?
Cabreuva is listed botanically as Myrocarpus fastigiatus, a plant of the Fabaceae family, native to Brazil and Paraguay. The material in circulation is heartwood (essential oil) — an extracted oil rather than the raw plant material. Cabreuva is the name in everyday use, while Myrocarpus fastigiatus is the name that identifies it unambiguously across languages, trade documents and safety literature. Its character is described as soft, woody, sweet-rosy, balsamic — bridges sandalwood and rosewood, which is often how the raw material is checked for quality.
Use of Cabreuva predates its chemical analysis by a long way: earlier records describe it by season, preparation and the part gathered rather than by any constituent, and that practical knowledge is what later study was measured against. Beyond its practical use it carries cultural associations — considered a 'wood of peace' in Brazilian folk magic.
Today most searches for Cabreuva come from people reading about wound healing, antibacterial, antifungal and anxiety, or checking how it sits alongside a medication they already take. The use most often documented in the literature is wound and ulcer healing (nerolidol), followed by anti-inflammatory and antibacterial on chronic skin lesions.
How Does Cabreuva Work?
Cabreuva works as a mixture rather than a single isolated compound, and its profile is usually described by the class of constituents present in heartwood (essential oil) rather than by one marker molecule.
Traditional practice described Cabreuva in terms of taste, warmth and preparation rather than molecules — a working vocabulary that predicted which extractions were worth making long before any compound was isolated.
Published research is limited, leaning on small trials, laboratory work and animal models, and this profile cites 1 source. Reported findings centre on GC-MS shows 60–85% trans-nerolidol. Where research exists, it examines wound and ulcer healing (nerolidol), anti-inflammatory and antibacterial on chronic skin lesions and mild antifungal activity. These are areas of study, not established outcomes, and results differ by preparation and dose.
How the plant is prepared changes what you actually get. Its constituents move readily into fixed oil and alcohol — so a preparation made in another medium will not carry the same fraction of the plant, which is why traditional recipes specify one over another.
The reason Cabreuva is treated as its own entry rather than a substitute for a related plant is proportion: related species share several of these compound classes, but not in the same ratio or concentration.
Because these constituents are processed by the same pathways that handle many medicines, Cabreuva is documented as interacting with topical drugs. That is a question of shared metabolism rather than of potency, and it is the main reason the plant is listed in interaction references at all.
Dose, plant part and growing conditions all shift the constituent profile, so two products carrying the name Cabreuva can differ substantially; this is why reference entries specify heartwood (essential oil) and, where they exist, standardisation markers.