Valerian has an unusually clean solution to an unusually messy problem. The problem: several distinct plant species trade legitimately under the name, and the cheapest of them is abundant in India — where much of the world's extract capacity sits. The solution: one HPLC assay that verifies potency and species simultaneously. Most valerian specifications do not ask for it.
Four Plants, One Name
All of these are genuinely called valerian, and they are different plants:
| Binomial | Common name | Note |
|---|---|---|
| Valeriana officinalis | Valerian | What monographs describe; what most buyers mean |
| Valeriana jatamansi (syn. V. wallichii) | Indian valerian, tagar | Abundant and cheaper in India |
| Valeriana edulis | Mexican valerian | Different chemistry again |
| Nardostachys jatamansi | Jatamansi, spikenard | Not a valerian at all — CITES Appendix II |
The last row is a different kind of trap: Nardostachys jatamansi merely shares the species epithet with Indian valerian. It is a separate Himalayan plant, and it is CITES Appendix II listed — international trade requires CITES documentation. It is not valerian and should never be supplied as such.
The Assay That Solves It
Here is the fact that should shape every valerian purchase specification.
Valerenic acids are characteristic of Valeriana officinalis. They are not present at meaningful levels in Indian valerian or Mexican valerian. So a specification of "valerenic acids NLT 0.8% w/w by HPLC" is not merely a potency requirement — material that is not V. officinalis structurally cannot meet it. The potency assay and the identity check are the same test.
This is rare. Most botanicals need a separate identity method alongside the potency assay — giloy needs explicit species work, centella needs TLC against reference material. Valerian gets both from one number.
The practical implication: never buy valerian on extract ratio alone. A "4:1 valerian extract" with no valerenic acid figure conceals potency and species simultaneously.
The India Question, Stated Plainly
We are an Indian exporter, so we will be direct about a risk that our own geography creates.
Indian valerian (V. jatamansi) is abundant and materially cheaper in India — and India holds a great deal of the world's botanical extract capacity. A buyer sourcing valerian from an Indian supplier therefore carries a substitution risk they might not carry sourcing from Europe.
The answer is not to avoid Indian supply. It is to specify properly:
- Require the binomial in writing — "Valeriana officinalis L.", not "valerian"
- Require a valerenic acid specification — which resolves it independently of anyone's word
- Verify independently on first order
Those three steps close the risk entirely. A supplier who resists any of them has told you something useful.
Valepotriates: Why We Do Not Specify Them
Valepotriates are iridoid esters in fresh valerian root, sometimes proposed as a standardisation marker. We do not offer a valepotriate-standardised grade, and the reasoning is worth understanding because it applies to specification-writing generally.
- They are chemically unstable. Valepotriates degrade during drying, processing and storage. A figure measured at manufacture does not describe the material arriving at your factory months later — the specification does not hold over time.
- They vary between species, making them a poorer identity control than valerenic acids.
A specification you cannot verify on receipt is not a specification. If your own documentation calls for valepotriate data, get the stability limitation recorded in writing rather than left implicit. See our standardisation guide.
The Odour Is Real
It would be unhelpful to be delicate about this. Valerian has a strong, persistent and widely disliked odour, from its volatile fraction including isovaleric acid. It is characteristic, not a defect. Two consequences:
- It transfers. Valerian will scent nearby materials and packaging in a shared warehouse. Store sealed and physically separated — especially from flavour-critical ingredients.
- It resists masking in open formats. Capsules and tablets contain it. Gummies, chewables and beverages are materially harder.
A deodorised grade reduces the volatile fraction. Honestly stated: deodorisation removes part of the plant's natural profile along with the smell. That is a trade worth making for a gummy and usually not worth making for a capsule. See formulation.
Root and Rhizome Only
Valerian's actives are in the underground parts. Aerial material carries little and dilutes the extract.
Because it is an underground part, soil adhesion is a genuine concern — the same issue as coleus root. Acid-insoluble ash is the parameter that catches it; specify NMT 2% and treat it as a real control.
What a Genuine Valerian CoA Must Show
| Parameter | Specification / Limit | Method |
|---|---|---|
| Species | Valeriana officinalis L. — binomial | Documentation |
| Part used | Root and rhizome | Documentation |
| Identification | vs authentic V. officinalis reference | TLC / HPLC |
| Valerenic acids | NLT 0.8% w/w (dry basis) | By HPLC |
| Individual acids | Valerenic, acetoxyvalerenic — reported | By HPLC |
| Loss on drying (105°C) | NMT 5.0% | IP-2014 |
| Acid-insoluble ash | NMT 2% — soil on an underground part | IP-2014 |
| Residual solvent (ethanol) | NMT 5,000 ppm | By GC |
| Lead / Arsenic / Cadmium / Mercury | NMT 1.0 / 1.0 / 0.3 / 0.1 ppm | ICP-MS |
| Pesticide residues / ETO | Complies EU MRL / not treated | GC-MS, LC-MS/MS |
| Microbiology (TPC / Y&M / pathogens) | NMT 1,000 / NMT 100 / negative | USP <2021>/<2022> |
What to Ask Your Supplier
- Which species — binomial, in writing
- Valerenic acids by HPLC, dry basis, on every batch
- Root and rhizome only, declared
- Identity against authentic V. officinalis reference
- Acid-insoluble ash limited
- Deodorised grade available, if your format needs it
- Heavy metals by ICP-MS with numeric limits
- Collection status declared; carriers declared
Our companion valerian supplier evaluation guide turns this into a scored checklist. SV Botanica declares the binomial and assays valerenic acids on every batch.
Source Species-Verified Valerian Root Extract from India
Valeriana officinalis declared by binomial · valerenic acids 0.8% by HPLC, an assay that verifies the species · deodorised grades · CoA-backed · samples for qualified buyers