Every lot is tested twice before it ships.
Our manufacturer tests each lot. Then Testides Analytical, an independent lab in Ontario, tests it again. Find the report with the lot number on your vial.
- Tested by
- Testides Analytical, Ontario
- Every lot
- 11 tests across two labs
- Check a report
- testides.com/verify
11 tests, one lot at a time.
The independent lab checks identity by mass, measures purity, net content, endotoxin and heavy metals, and records appearance. The manufacturer's lab runs the other 5. Each report covers a sample from one lot.
Select a test to see what it shows and what it cannot show.
What it shows
Measures the mass of the molecule and compares it with the expected mass of the peptide on the label. A different mass points to a wrong peptide, a shortened chain or a substitute.
What it cannot show
A mass match is strong evidence, not a full structure check. It does not measure purity.
Tested twice before it ships.
The lab that makes each lot tests it first. Then an independent lab tests it again. Both reports carry the lot number on your vial.
- 1
At the manufacturer
Report on fileThe manufacturer's lab tests each lot when it is made. We keep that report on file for your lot.
- Purity (HPLC)
- Impurities
- Water content
- Residual solvents
- 2
At Testides Analytical
Report publishedTestides tests a sample from the same lot. It checks identity by mass and measures purity, net content, endotoxin and heavy metals. A lot ships only after both reports pass.
- Identity (mass spec)
- Purity (HPLC)
- Net content
- Endotoxin (LAL)
- Heavy metals
Questions to ask any supplier.
A label states what should be in the vial. A lot report shows what a lab measured. Compare the two.
| What to check | Label claim only | avelden |
|---|---|---|
| Identity | A name on the label | Mass spectrometry by an independent lab |
| Purity | A number with no method | HPLC on every lot by an independent lab |
| Net content | The amount printed on the label | Measured in mg per vial |
| Endotoxin | Not shown | LAL test on every lot |
| Heavy metals | Not shown | Lead, cadmium, mercury and arsenic on every lot |
| Report | None, or one for another lot | One report for each lot number |
| Who tested it | Not named | Testides Analytical, Ontario |
| Check the report | Nothing to check | Enter the report number at testides.com/verify |
Every lot has its own report.
A certificate of analysis, or COA, is a lab's report on one lot. It names the product, the methods, the results and the test date.
- 1Find the lot number
It is printed on the label of your vial.
- 2Open the report
Enter the number in the certificate lookup.
- 3Check the record
Enter the report number from the certificate at testides.com/verify.
Reports appear in the lookup as each lot is tested.
Certificate of analysis
Testides Analytical · Ontario, Canada
Tested in Canada.Shipped from British Columbia.
Testides Analytical is in Ontario. Every order ships from British Columbia. Canada Post Xpresspost is $20, or free on orders of $200 or more.