Advanced Research Peptides vs Peak Lab Peptides
Peak Lab Peptides has the higher PepFinder Score (8.7 vs 7.6). Both list 29 of the same peptides. Neither can pay to change the comparison.
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 Advanced Research PeptidesVisit store |  Peak Lab PeptidesVisit store | |
|---|---|---|
| PepFinder Score | 7.6 | 8.7 |
| Trustpilot | No score found | No score found |
| Customer rating | No reviews yet | 5.0/5 (1) |
| Would order again | Needs 5+ reviews | Needs 5+ reviews |
| Product selection | 8.6/10 29 peptides · 44 products | 9.9/10 61 peptides · 184 products |
| Pricing and value | 5.5/10 10% more expensive than average per mg | 6.9/10 5% cheaper than average per mg |
| Delivery | 7.0/10 2-7 business days | 8.8/10 1-4 days |
| Payment options | 10.0/10 CardVisaMastercardCryptocurrencyZelleVenmo | 8.5/10 CardVisaMastercardAmerican ExpressApple PayZelle |
| Customer support | 8.5/10 EmailPhoneContact form | 10.0/10 EmailPhoneLive chatContact form |
| Website experience | Not rated yet | Not rated yet |
| Reliability | 7.5/10 | 8.8/10 |
| Packaging | Not rated yet | Not rated yet |
| Ships from | United States | United States |
| Ships to | United States | United States |
| Median price per mg | US$7.90 | US$5.37 |
| Reported delivered | No order reports | No order reports |
| Median delivery (reported) | Needs 3+ reports | Needs 3+ reports |
| Support replied (reported) | No support reports | No support reports |
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)
| Advanced Research Peptides | Peak Lab Peptides | |
|---|---|---|
| Transparency Score | 7.9 | 7.5 |
| Testing transparency | – | 7.1 |
| Contact transparency | 10.0 | 10.0 |
| Documentation | 5.3 | 5.1 |
| Third-party testing stated | ✓ Yes | ✓ Yes |
| Publishes COAs | Not yet assessed | ✓ Yes |
| Batch-specific COAs | Not yet assessed | Not yet assessed |
| COAs reviewed by us | 0 | 1 |
| Verification | Not verified | Verified |
| Years tracked | 0.1 | 0.1 |
| Refund policy clear | Not yet assessed | Not yet assessed |
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Supplier and market information only; not medical advice.