Almost every supplier says "third-party tested." The phrase costs nothing. What matters is whether the report in front of you describes the item you will actually receive. These seven checks answer that question, and none of them needs a lab background.
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The lot number on the report matches the label
A lot is one production run. Its number is the only thing that ties a report to the item in your hands. Find it on the label, then find it on the report.
✓ Same number on both✗ Different, or no lot number at all -
The report is specific to one batch
A single PDF that covers several products, or never changes between orders, is a catalogue sheet, not a batch record. It tells you nothing about what shipped.
✓ One lot, one report✗ One report reused for everything -
The testing laboratory is named, and you could contact it
An independent lab puts its name, address and report number on the document. A report with no identifiable lab is a document anyone could have typed.
✓ Lab named, report ID shown✗ Anonymous, or "in-house" only -
The method is stated next to the result
A purity percentage means little without the method behind it. Look for the technique (for example HPLC for purity) and, ideally, a separate identity test confirming the material is what the label says.
✓ Method and result together✗ A bare number, no method -
The report is dated before the batch went on sale
Published first is a record. Published after a customer asks is a response. The test date should come before the product was available to buy.
✓ Tested, then sold✗ Dated after you ordered -
You can read it before you pay
A supplier confident in its documentation publishes it on the product page. "Available on request" or "emailed after purchase" means you are buying first and checking later.
✓ Public before checkout✗ Only after purchase -
There is a real company behind it
A legal entity name, a physical address, a support email that a person answers, and clear refund terms. If you cannot find who you are buying from, you cannot hold anyone to anything.
✓ Named company and address✗ Contact form only
Red flags that should end the search
- Blurred or cropped lot numbers. If the one field that matters is unreadable, the report is not evidence.
- The same purity figure on every product. Real batches vary. Identical numbers across a catalogue suggest a template.
- Health or results claims. Research suppliers sell for laboratory use. Promises about what a product does to people are a legal and quality warning.
- Prices far below everyone else. Independent testing costs money on every lot. Someone is skipping a step.
Print-and-keep checklist
- Lot number on label matches report
- Report covers one lot only
- Testing lab named with report ID
- Method stated beside the result
- Identity confirmed, not just purity
- Report dated before sale
- Readable before checkout
- Company name, address, support email
Run the checks on us.
Arctic publishes lot-matched third-party reports you can read before you order, and every parcel ships from Anchorage with tracking.
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