GLP1 Research Lab vs Improved Peptides
GLP1 Research Lab has the higher PepFinder Score (6.6 vs 5.7). Both list 8 of the same peptides. Neither can pay to change the comparison.
| GLP1 Research LabVisit store |  Improved PeptidesVisit store | |
|---|---|---|
| PepFinder Score | 6.6 | 5.7 |
| Trustpilot | No score found | 3.8 Trustpilot(2) |
| Customer rating | No reviews yet | No reviews yet |
| Would order again | Needs 5+ reviews | Needs 5+ reviews |
| Product selection | 6.6/10 10 peptides · 11 products | 7.1/10 13 peptides · 15 products |
| Pricing and value | Not rated yet | 4.1/10 40% more expensive than average per mg |
| Delivery | 7.0/10 Domestic (U.S.) delivery typically takes 2–5 business days after processing, depending on FedEx service level and destination. | Not rated yet |
| Payment options | 7.0/10 VisaMastercardAmerican ExpressVenmoPayPal | 8.5/10 VisaMastercardCardAmerican ExpressPayPalZelleVenmo |
| Customer support | 5.0/10 None found yet | 5.0/10 None found yet |
| Website experience | Not rated yet | Not rated yet |
| Reliability | 7.0/10 | 5.5/10 |
| Packaging | Not rated yet | Not rated yet |
| Ships from | United States | United States |
| Ships to | Not stated | Not stated |
| Median price per mg | — | US$6.50 |
The shaded cell is the higher rating in that row. Each rating's source (automated data, customer reviews or editorial) is shown on the supplier's profile.
Testing & transparency (optional detail)
| GLP1 Research Lab | Improved Peptides | |
|---|---|---|
| Transparency Score | 4.5Provisional | 4.2Provisional |
| Testing transparency | 4.6 | 6.1 |
| Company transparency | 2.7 | 2.7 |
| Documentation | 4.7 | 3.8 |
| Third-party testing stated | ✓ Yes | ✓ Yes |
| Publishes COAs | ✓ Yes | ✓ Yes |
| Batch-specific COAs | Not yet assessed | Not yet assessed |
| COAs reviewed by us | 0 | 0 |
| Verification | Not verified | Not verified |
| Company registration | Not published | Not published |
| Years tracked | 0.0 | 0.0 |
| Refund policy clear | Not yet assessed | Not yet assessed |
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