Agarwood fraud is common enough that a set of basic home checks is worth running before any purchase, whether you're buying a few chips, a carved bracelet, or a bottle of oil. None of these tests can independently prove species or exact origin, but together they catch most of the soaking, dyeing, and weighting tricks used to pass off cheap wood as genuine, resin-rich agarwood.
This guide covers the checks you can actually run yourself, with no lab equipment. For the specific deceptive tactics these tests are designed to catch, see our companion guide to fake oud, what to look for.
Why It's Worth Testing Before You Buy
Agarwood is valuable enough, and visually similar enough to treated ordinary wood, that misrepresentation is a persistent problem across the trade, from low-end souvenir markets to higher-end online listings. A few minutes of basic checking won't catch every sophisticated fake, but it will catch the large majority of low-effort ones, and it costs nothing beyond the time it takes.
Visual Inspection: What Real Resin Looks Like
Start with a close look at the wood itself. Genuine resin-saturated agarwood typically shows natural, irregular dark spots or veining, the visible result of resin accumulating unevenly through the wood as it formed, covered in more detail in our guide to how agarwood resin forms. These dots and veins follow no repeating pattern, since the underlying fungal colonisation that produced them didn't follow one either.
Wood that has been artificially darkened to fake a high grade tends to look different: a flatter, more uniform dark colour across the whole surface, without the natural variation real resin deposits create. Genuine pieces often show a subtle natural sheen from resin content, while dyed or coated fakes can look matte or oddly glossy in a way that doesn't match how real resin reflects light.
The Weight and Sinking Test
Resin is considerably denser than the plain wood surrounding it, so a piece of genuine, resin-rich agarwood should feel noticeably heavy for its size. Drop a small piece into a glass of water: agarwood with high resin content, above roughly 1 gram per cubic centimetre in density, will sink, while wood with little or no resin will float. This is the same basic principle behind the trade's sinking-rate grading conventions, covered in our grading overview.
Want the full picture on what resin percentage actually measures?
Resin Content: What It Means and How to Measure ItA floating result isn't automatically proof of fraud, since plenty of genuine, lower-grade agarwood has too little resin to sink. But a piece marketed and priced as high-grade, sinking-quality material that floats is a clear red flag worth pursuing with the seller.
The Cold Smell Test
Genuine agarwood carries a distinct, layered scent even without heating it: warm, woody, faintly sweet, and resinous, with a complexity that doesn't read as a single, flat note. If a piece smells overly sweet, sharply chemical, or has a tangy, almost alcohol-like edge straight out of the packaging, that's a meaningful warning sign. It often indicates the wood has been soaked or sprayed with a synthetic fragrance designed to imitate agarwood's scent rather than containing the real thing.
The Heat Test: What to Watch For
A more revealing, if slightly more involved, check is to apply gentle heat, holding a small chip with tweezers above an incense burner or a candle flame rather than direct contact, and observing how it responds. Genuine, resin-rich agarwood tends to release a pleasant, complex aroma with comparatively little smoke, and resin can sometimes be seen bubbling slightly at the heated surface. Wood that has been chemically treated to imitate agarwood often behaves differently under heat: a harsh, acrid, or chemical-smelling smoke, sometimes with a sour edge, and a scent that can feel one-dimensional or unpleasant rather than complex.
The Boiling Water Test
For a final check, particularly useful on beads or carved pieces where dye is a common concern, submerge a small sample in roughly 200 millilitres of boiling water for a few minutes. If the water turns visibly cloudy, discoloured, or otherwise stops being transparent, that can indicate dye, coating, or another surface treatment leaching off the piece, something genuine, untreated agarwood shouldn't produce.
What These Tests Can't Tell You
None of the checks above can confirm exactly which species or country a piece of agarwood came from, or definitively prove whether it was wild-harvested or plantation-grown; those claims rest on documentation and seller credibility rather than anything visible, smellable, or testable at home, a point covered in our buying guide. More sophisticated fakes, including wood injected with synthetic oil under pressure specifically to pass a basic sinking test, can also defeat some of these checks individually. Lab methods such as GC-MS chemical profiling, covered in our grading overview, remain the only fully reliable way to verify composition for high-value purchases, but for everyday buying decisions, running several of these home checks together catches the overwhelming majority of misrepresented agarwood on the market.