Dn Research vs Optimal Lab
Optimal Lab has the higher PepFinder Score (8.1 vs 5.7). Both list 31 of the same peptides. Neither can pay to change the comparison.
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 Dn ResearchVisit store |  Optimal LabVisit store | |
|---|---|---|
| PepFinder Score | 5.7 | 8.1 |
| Trustpilot | No score found | No score found |
| Customer rating | No reviews yet | No reviews yet |
| Would order again | Needs 5+ reviews | Needs 5+ reviews |
| Product selection | 8.1/10 32 peptides · 44 products | 9.6/10 47 peptides · 263 products |
| Pricing and value | 2.5/10 85% more expensive than average per mg | 6.0/10 In line with the average price per mg |
| Delivery | Not rated yet | 10.0/10 1to2 days |
| Payment options | Not rated yet None found | 7.0/10 CardPayPal |
| Customer support | 5.0/10 None found yet | 10.0/10 EmailPhoneWhatsAppTelegram |
| Website experience | Not rated yet | Not rated yet |
| Reliability | 7.0/10 | 7.5/10 |
| Packaging | Not rated yet | Not rated yet |
| Ships from | Not stated | United Kingdom |
| Ships to | Not stated | United Kingdom, Ireland |
| Median price per mg | €8.40 | £2.50 |
| 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)
| Dn Research | Optimal Lab | |
|---|---|---|
| Transparency Score | 5.8 | 6.8 |
| Testing transparency | – | 5.4 |
| Contact transparency | 10.0 | 10.0 |
| Documentation | 1.9 | 3.8 |
| Third-party testing stated | Not yet assessed | Not yet assessed |
| Publishes COAs | Not yet assessed | ✓ Yes |
| Batch-specific COAs | Not yet assessed | Not yet assessed |
| COAs reviewed by us | 0 | 0 |
| Verification | Not verified | Not 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.