Optimal Peptides vs Peak Lab Peptides
Peak Lab Peptides has the higher PepFinder Score (8.7 vs 7.8). Both list 34 of the same peptides. Neither can pay to change the comparison.
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 Optimal PeptidesVisit store |  Peak Lab PeptidesVisit store | |
|---|---|---|
| PepFinder Score | 7.8 | 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 | 9.1/10 35 peptides · 38 products | 9.9/10 61 peptides · 184 products |
| Pricing and value | 4.4/10 32% more expensive than average per mg | 6.9/10 5% cheaper than average per mg |
| Delivery | 8.5/10 2-3 Days Depending on Shipping Option | 8.8/10 1-4 days |
| Payment options | 10.0/10 CardVisaMastercardAmerican ExpressApple PayGoogle PayPayPalKlarnaBank transferOpen BankingCryptocurrencyZelleCash App | 8.5/10 CardVisaMastercardAmerican ExpressApple PayZelle |
| Customer support | 5.0/10 None found yet | 10.0/10 EmailPhoneLive chatContact form |
| Website experience | Not rated yet | Not rated yet |
| Reliability | 9.5/10 | 8.8/10 |
| Packaging | Not rated yet | Not rated yet |
| Ships from | United States | United States |
| Ships to | United States, United Kingdom, Ireland and 2 moreUnited States, United Kingdom, Ireland, Germany, France | United States |
| Median price per mg | US$7.00 | 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)
| Optimal Peptides | Peak Lab Peptides | |
|---|---|---|
| Transparency Score | 8.0 | 7.5 |
| Testing transparency | 6.0 | 7.1 |
| Contact transparency | 10.0 | 10.0 |
| Documentation | 7.2 | 5.1 |
| Third-party testing stated | Not yet assessed | ✓ Yes |
| Publishes COAs | ✓ Yes | ✓ Yes |
| Batch-specific COAs | Not yet assessed | Not yet assessed |
| COAs reviewed by us | 1 | 1 |
| Verification | Verified | Verified |
| Years tracked | 0.1 | 0.1 |
| Refund policy clear | Not yet assessed | Not yet assessed |
Full profiles: Optimal Peptides · Peak Lab Peptides · add more suppliers
Supplier and market information only; not medical advice.