Cinnamon supplier qualification is the fastest in this category, because two questions asked in a single email will sort the field. Which species, by binomial? And what is the measured coumarin figure, in ppm? A supplier who answers both without hesitation is running a serious operation. A supplier who answers “it's cinnamon” and “it complies” has told you everything, at no cost.
Three Disqualifying Red Flags
- Will not name the species by binomial. "Cinnamon extract" or "Cinnamomum sp." on a certificate means they either do not know or do not want to be held to it. For a daily-dose product this is disqualifying.
- Reports coumarin as "complies" rather than a figure — or does not test it. You cannot run per-serving intake arithmetic from the word "complies", and that arithmetic is what your safety position rests on.
- Offers a low-coumarin extract from Cassia bark. As covered in our coumarin guide, coumarin is in the raw bark and does not come out in ordinary processing. This claim indicates either a misunderstanding of their own material or something worse.
The two-question filter, verbatim: "Which Cinnamomum species is the bark, stated as a binomial? And what is the measured coumarin content in ppm by HPLC on a recent batch?" Send it before you discuss price. The answers arrive in a day and they rank suppliers more reliably than any audit certificate.
The Scoring Framework
Weighted to 100 points. Species and coumarin control carry 35 between them — deliberately high, because on this ingredient they are the safety controls, not merely quality ones.
1. Species Control and Coumarin — 35 points
| Criterion | Points |
|---|---|
| Species declared by binomial on every batch CoA | 10 |
| Coumarin measured by HPLC and reported as a figure | 10 |
| Will agree a coumarin ceiling in the purchase specification | 6 |
| Genuine Ceylon (C. verum) supply available with traceable bark origin | 5 |
| TLC identity against authentic reference material | 4 |
2. Assay and Composition Transparency — 20 points
| Criterion | Points |
|---|---|
| Standardisation basis named, with method (polyphenols UV / cinnamaldehyde HPLC) | 7 |
| Cinnamaldehyde reported per batch | 4 |
| Eugenol reported — catches leaf milled with bark | 4 |
| "Bark only" declaration, excluding leaf | 3 |
| Carriers declared by name and percentage; assay on dry carrier-free basis | 2 |
The eugenol line is a quiet competence signal. A supplier who reports it without being asked has thought about leaf substitution; most have not.
3. Contaminant Testing and Compliance — 20 points
| Criterion | Points |
|---|---|
| Heavy metals by ICP-MS with numeric per-element limits | 5 |
| Aflatoxin testing by HPLC-FLD | 5 |
| Non-ETO declaration with LC-MS/MS testing available | 4 |
| EU pesticide MRL screening with a real report | 3 |
| Full USP microbiological panel including pathogens | 3 |
ETO and aflatoxin both earn their weighting here. Dried bark is a recognised ethylene-oxide risk category for EU import — where a positive finding means the consignment is destroyed — and bark stored warm and humid before processing is a genuine aflatoxin substrate.
4. Grade Capability — 10 points
| Criterion | Points |
|---|---|
| Both Ceylon and Cassia available, priced separately and honestly | 4 |
| Both standardisation bases available | 3 |
| Cold-water-soluble grade available | 3 |
"Priced separately and honestly" is the operative phrase. A supplier quoting Ceylon at Cassia pricing is telling you something — either about what is in the drum, or about their own supply chain's reliability.
5. Consistency and Commercial Terms — 15 points
| Criterion | Points |
|---|---|
| Three consecutive batch CoAs showing consistent species and coumarin figures | 5 |
| Bark origin and harvest period stated; batch traceable to raw-material lot | 3 |
| Incoterms quoted properly to your named destination | 3 |
| Written payment terms on a proforma invoice | 2 |
| Technical questions answered by someone who understands the chemistry | 2 |
The three-batch coumarin comparison is particularly informative on cinnamon. Consistent low figures across batches indicate a stable Ceylon raw-material chain. Figures that jump between batches suggest the supplier is buying opportunistically — which means your next lot may not be the species you qualified.
Interpreting the Score
| Score | Reading |
|---|---|
| 85–100 | Qualified for bulk supply. Proceed to sample and pre-shipment verification. |
| 70–84 | Workable with conditions. Close the gaps in writing before first bulk order. |
| 55–69 | Trial quantities only, with independent coumarin verification on every lot. |
| Below 55 | Not a supplier for a daily-dose product. |
Apply a hard floor on section 1: below 20 of 35, decline for any daily-dose application regardless of the total. A supplier can score well on compliance, capability and commercial terms and still be unable to tell you which species is in the drum — and on cinnamon that single gap outweighs the rest.
The Sample Stage
- Ask for Ceylon and Cassia samples side by side, with both coumarin figures. A supplier who can produce both, correctly differentiated, is genuinely running two supply chains rather than relabelling one.
- Check the coumarin figure against the species claim. This is the whole test. A claimed-Ceylon sample with substantial coumarin has failed before you look at anything else.
- Smell it. Cassia is sharper and more assertive; Ceylon is softer and more complex. Not proof, but a useful first-pass sanity check that costs nothing.
- Check colour and flow. Unusually pale, unusually free-flowing material is a bulking signal.
- Did they ask about your dose? A supplier who does not ask what your daily serving is cannot advise on species, which means they are not really engaging with your problem.
First-Order Protocol
- Nominate an independent laboratory — Eurofins, SGS or Intertek — for pre-shipment sampling. Put coumarin and species identity in the scope, not just the polyphenol assay. An independent assay alone reproduces the blind spot.
- Compare the independent coumarin figure against the supplier CoA. This is your single most informative comparison on cinnamon.
- Retain a sealed, dated sample for the shelf life of the material.
- Re-verify at batch three, then annually — and always on a price change. A Ceylon price that suddenly drops toward Cassia levels warrants testing before it warrants celebration.
SV Botanica supplies Ceylon and Cassia cinnamon bark extract from certified facilities with the species declared by binomial, coumarin measured by HPLC and reported as a figure, cinnamaldehyde reported alongside the polyphenol assay, and identity confirmed by TLC. Buyer-nominated third-party pre-shipment testing is welcome. See the product page, the buyer's guide, or adulteration and authenticity.
Source Species-Declared Cinnamon Extract from India
Ceylon & Cassia grades · coumarin measured and declared per batch · polyphenols NLT 20% or cinnamaldehyde by HPLC · CoA-backed · samples for qualified buyers