Most ingredient websites say the documentation exists. This page says what is in it, who produces it, and what happens when a lot is questioned.
What is tested
| Parameter | Method | Frequency |
|---|---|---|
| Assay (active content) | HPLC or GC, method named on the specification | Every lot |
| Heavy metals — Pb, As, Cd, Hg | ICP-MS | Every lot |
| Microbiology — total plate count, yeast and mould, E. coli, Salmonella | Pharmacopoeial methods | Every lot |
| Pesticide residues | GC-MS/MS and LC-MS/MS | Every lot on botanical extracts |
| Residual solvents | GC | Where solvents are used in the process |
| Irradiation | PSL screening | Where an irradiation-free declaration is required |
Who tests it
Testing is carried out by an accredited third-party laboratory, independent of the production site. In-house QC at the manufacturing partner is used for process control only — it is not the basis of the certificate you receive.
The document set
| Document | When you get it | What it contains |
|---|---|---|
| Certificate of Analysis | With every lot | Results for each parameter on the specification, the method used, the lot number and the release date |
| Specification sheet | Before you order | Assay range, mesh or particle size, appearance, solubility, test method |
| Technical Data Sheet | Before you order | Applications, handling and storage |
| Safety Data Sheet | Before you order | Hazard and handling information |
| Allergen and GMO statements | On request | Declaration covering the specific lot |
| Third-party laboratory report | With the lot, on request | The full report behind the certificate |
Batch numbers and retained samples
Every lot carries a batch number that maps to its production date, the raw material source and the sample we keep. A retained sample is held for two years, so a question raised after delivery is answered from the same material — not from a new batch that happens to test well.
When a lot is questioned
- We re-test the retained sample at a third-party laboratory, at our cost, before any commercial discussion starts.
- If the result confirms the deviation, the lot is replaced or credited in full, including freight and disposal where applicable.
- You receive the investigation record in writing.
What this page does not claim
We do not display certificates we do not hold. Where a manufacturing partner holds one — GMP, ISO 22000, HACCP, halal, organic — it is named as theirs, and a copy is sent with the quotation instead of being used as decoration on this page.
Documents you can ask for now
Ask for the specimen set — a redacted certificate of analysis, a specification sheet and a safety data sheet for a product close to your specification — and we will send the PDFs with the quotation.