IGF-1 LR3 certificates of analysis
Every IGF-1 LR3 lot, with the full results from ILS Laboratories. Current lots test at 99.69% purity by HPLC-UV, with identity confirmed by HPLC retention-time match against a reference standard on every lot.
Last updated
All lots
Find the lot number on your vial label and open the matching row. Each lot page shows every result, the methods used, the mass confirmation and the laboratory reference numbers.
| Lot | Vial size | Net content | Purity (HPLC-UV) | Identity (HPLC-RTM) | Endotoxin (LAL) | Microbial (PCR) | Reported | COA |
|---|---|---|---|---|---|---|---|---|
| KB-17790 | 1 mg | 1.04 mg | 99.69% | Confirmed | Not tested | Not tested | View lot KB-17790 |
Testing laboratory: ILS Laboratories. Release specification: purity ≥95% by HPLC-UV with identity confirmed by HPLC retention-time match against a reference standard. Results apply only to the lot listed. Certificates list the testing client as Klow.bio / Klow Labs LLC, the company that operates IGF-1 Research.
IGF-1 LR3 testing records
Every test on every IGF-1 LR3 lot in one table: lot, test, method, result, laboratory and date. The same data is available as a CSV file.
| Lot | Size | Test | Method | Result | Laboratory | Reported |
|---|---|---|---|---|---|---|
| KB-17790 | 1 mg | Purity | HPLC-UV (area percent) | 99.69% | ILS Laboratories | Sep 11, 2026 |
| KB-17790 | 1 mg | Identity | HPLC retention-time match | Confirmed | ILS Laboratories | Sep 11, 2026 |
| KB-17790 | 1 mg | Net content | Laboratory quantitation | 1.04 mg | ILS Laboratories | Sep 11, 2026 |
| KB-17790 | 1 mg | Appearance | Visual | Good (visual) | ILS Laboratories | Sep 11, 2026 |
| KB-17790 | 1 mg | Bacterial endotoxin | LAL assay, USP <85> | Not tested | ILS Laboratories | Sep 11, 2026 |
| KB-17790 | 1 mg | Microbial DNA | PCR | Not tested | ILS Laboratories | Sep 11, 2026 |
| KB-17790 | 1 mg | Fentanyl | Immunoassay, 50 ng/mL cutoff | Not detected | ILS Laboratories | Sep 11, 2026 |
Download the testing records (CSV). Values are copied from each laboratory certificate.
Verify a certificate
Check any IGF-1 LR3 certificate directly with the laboratory.
- Find the lot number on your vial. It is printed on the label, for example KB-17790.
- Look it up. Enter it at igf1.bio/verify, or open the matching lot in the COA archive.
- Check the lab's own record. Go to portal.ils-lab.com (or scan the QR code on the certificate) and enter the lot's verification access code, listed on its lot page, to view the laboratory's own copy of the certificate.
- Compare the details. Lot number, the laboratory’s reference numbers, purity and dates should match exactly.
What a certificate of analysis does and doesn't show
- A COA reports the identity, purity and content of the specific sample tested, on its test date. Results apply to that lot only.
- HPLC purity measures the main peak relative to other detected components. It does not identify the peak on its own; the separate identity test (HPLC retention-time match) does that.
- A retention-time match shows the main peak behaves like the reference standard under one method. It is not a mass or structure measurement.
- Endotoxin and microbial results apply only where those tests appear on the certificate. Lots without them are marked "Not tested".
- A certificate does not establish stability after the test date or suitability for any particular purpose.
Reading these certificates
Guides to every section of a IGF-1 LR3 certificate and the methods behind it.
Buy IGF-1 LR3
1 mg vials. Current lot KB-17790 tested at 99.69% purity with identity confirmed by HPLC retention-time match against a reference standard. Current purchasing is available through Klow.bio.