IGF-1 COA — Verified Certificate of Analysis Results
9 independent third-party certificates of analysis for IGF-1, from 1 labs across 9 vendors (2024-03-29 to 2026-03-06).
Every IGF-1 certificate of analysis below is from an independent third-party lab, ingested and verified by TitrateLab. The figures here are computed live from the 9 published IGF-1 certs in our corpus.
9
Certificates
1
Independent labs
99.4%
Median tested purity
83%
Within 10% of label dose
↑ 50%
Overdosed (≥ +7% vs label)
↓ 17%
Underdosed (≤ −7% vs label)
Verified IGF-1 certificates of analysis
| Vendor | Purity | Dose vs label | Lab | Tested | |
|---|---|---|---|---|---|
| Chameleon Peptides LLC | 98.134% | +8.0% | Janoshik | 2026-03-06 | View COA → |
| Panda Peptides LLC | 98.134% | +8.0% | Janoshik | 2026-03-06 | View COA → |
| Growth Guys Canada | 99.456% | — | Janoshik | 2025-09-11 | View COA → |
| Cocer Peptides | 99.563% | +1.0% | Janoshik | 2025-08-29 | View COA → |
| Chilton Labs | 99.139% | — | Janoshik | 2025-08-01 | View COA → |
| www.qinglishangmao.com | 99.282% | +13.0% | Janoshik | 2025-05-15 | View COA → |
| Peptide Gurus | 99.547% | -10.0% | Janoshik | 2024-11-22 | View COA → |
| Eros Peptides | 99.442% | +1.0% | Janoshik | 2024-10-18 | View COA → |
| thelobster | 99.731% | — | Janoshik | 2024-03-29 | View COA → |