How to Tell a Real Nirgundi, Beyond the Chasteberry Mix-Up
Beyond the name mix-up with Western chasteberry, a DNA-barcoding study tested commercial nirgundi products — and the measured authenticity rate is worth pausing on.
Our nirgundi article already covers the main naming pitfall for this plant: not confusing it with Western chasteberry (Vitex agnus-castus), used for the female cycle. But nirgundi's (Vitex negundo) authenticity raises a second issue, this time at the finished-product level: a DNA-barcoding study directly tested commercial products sold under this name, with a concerning result.
This benchmark complements the full set of criteria detailed in how to choose nirgundi.
Why test the authenticity of an already-processed product?
Once guggul-combination/">nirgundi leaves have been dried, ground or turned into oil, no visual check can confirm the species of origin anymore. The only reliable way to know what a finished product actually contains is laboratory analysis, such as DNA barcoding, which compares the DNA present in a sample against a reference library of authentic sequences.
What a DNA-barcoding study on commercial products shows
A study by Olivar, Alaba, Atienza, Tan, Umali and Alejandro, published in 2016 in Food Additives and Contaminants: Part A (see the study on Google Scholar), first built a DNA-barcode reference library to authenticate nirgundi (Vitex negundo, called "lagundi" in the Philippines), then tested five commercial products sold as teas, capsules or syrups. The result: only one of the five products tested proved authentic under the two analysis criteria used; the other samples contained an unidentified fungus or organism rather than Vitex negundo.
This study was conducted on the Philippine market, where nirgundi is officially recognized as a medicinal plant for cough and asthma, making it a particularly rigorous testing ground. It illustrates a broader problem: the lack of systematic control over the actual composition of herbal products, even in relatively structured supply chains.
Signals to check when buying
| Indicator | Probably reliable nirgundi | Suspicious signal |
|---|---|---|
| Botanical name | "Vitex negundo" clearly stated, distinguished from "Vitex agnus-castus" | Just "nirgundi" or "chasteberry," no Latin name |
| Smell (oil or leaves) | Characteristic camphoraceous smell | Weak, absent or different smell |
| Traceability | Identifiable origin and supplier | Vague mention with no detail on provenance |
| Analysis available | Supplier able to provide a quality-control certificate | No composition data available |
Fresh leaf, oil or powder: where does the higher risk sit?
The crushed fresh leaf, with its recognizable camphoraceous smell, remains the most reliable check for an informed user. Massage oil (nirgundi taila) and powder, already processed, no longer allow this direct sensory check: it is precisely on these finished forms that the risk documented by the study above concentrates.
Precautions
Beyond the authenticity question, keep in mind that nirgundi is traditionally discouraged during pregnancy and breastfeeding, and that prolonged internal use requires medical advice, particularly when taking sedatives. Full precautions appear in nirgundi: dangers and precautions and in our safety precautions guide.
Your questions about how to tell a real nirgundi, beyond the chasteberry mix-up
Is nirgundi sold in stores always authentic?
Not systematically. A DNA-barcoding study of five commercial Vitex negundo products found only one authentic, the others containing an unidentified fungus or organism.
What did Olivar and colleagues' study show about nirgundi?
Published in 2016, this study built a DNA-barcode reference library for Vitex negundo then tested five commercial products sold in the Philippines: only one proved authentic under the analysis criteria used.
How can I recognize good nirgundi by smell?
Crushed fresh leaves and massage oil give off a characteristic camphoraceous smell. A weak, absent or different smell is a warning sign.
Is the botanical name enough to guarantee nirgundi authenticity?
It is a necessary first filter, but the DNA-barcoding study shows that even products labeled nirgundi can fail to contain the claimed species: a supplier transparent about its quality checks remains the best benchmark.
Free guide
Your 7-step Ayurvedic morning routine
The condensed dinacharya: seven realistic steps with timings, the 15-minute weekday version and dosha adjustments. Enter your email and read it right away — no PDF to hunt for, no spam.