IGF-1 LR3 lot KB-17790 certificate of analysis
1 mg vial. Tested by ILS Laboratories: purity 99.69% by HPLC-UV, identity confirmed by HPLC-RTM, net content 1.04 mg. Reported September 11, 2026.
Sample summary
| Product | IGF-1 LR3 1 mg |
|---|---|
| Lot | KB-17790 |
| Purity (HPLC-UV) | 99.69% |
| Identity (HPLC-RTM) | Confirmed |
| Net content | 1.04 mg (+4.0% vs. label) |
| Appearance | Good (visual) |
| Endotoxin | Not tested for this lot |
| Microbial analysis (PCR) | Not tested for this lot |
Laboratory record
| Testing laboratory | ILS Laboratories |
|---|---|
| Client on certificate | Klow.bio |
| Certificate number | COA-2026-BGOBTB |
| Lab verification access code | F48K7SNT |
| Received by lab | September 9, 2026 |
| Reported | September 11, 2026 |
| Release specification | Purity ≥95%; identity confirmed |
| Against stated specification | Meets |
The client listed on the certificate, Klow Labs LLC (klow.bio), is the company that operates IGF-1 LR3 Labs.
Analytical results and methods
| Test | Method | Result |
|---|---|---|
| Identity | HPLC retention-time comparison with a reference standard (HPLC-RTM) | Confirmed |
| Purity | HPLC with UV detection (area percent) | 99.69% |
| Net content | Quantitation by the laboratory | 1.04 mg |
| Bacterial endotoxin | Limulus amebocyte lysate (USP <85>) | Not tested |
| Microbial DNA | Polymerase chain reaction (PCR) for common microbial contaminants | Not tested |
| Fentanyl | Immunoassay, 50 ng/mL cutoff | Not detected |
Verify this certificate
Certificate number COA-2026-BGOBTB, Lab verification access code F48K7SNT.
- Find the lot number on your vial. It is printed on the label, for example KB-17790.
- Look it up. Enter it at igf1lr3.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.
Other IGF-1 LR3 lots
| 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 LR3 Labs.
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.