Blackline Scientific vs Limitless Biotech
Blackline Scientific has the higher PepFinder Score (8.0 vs 5.4). Both list 37 of the same peptides. Neither can pay to change the comparison.
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 Blackline ScientificVisit store |  Limitless BiotechVisit store | |
|---|---|---|
| PepFinder Score | 8.0 | 5.4 |
| 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 | 8.9/10 38 peptides · 62 products | 9.9/10 89 peptides · 293 products |
| Pricing and value | 7.3/10 21% cheaper than average per mg | 5.3/10 13% more expensive than average per mg |
| Delivery | 10.0/10 2 Business Days | Not rated yet |
| Payment options | 10.0/10 CardVisaMastercardPayPalCryptocurrencyZelleVenmoCash App | 8.5/10 CryptocurrencyApple PayZelleCash AppPayPal |
| Customer support | 8.5/10 EmailPhoneWhatsApp | 5.0/10 None found yet |
| Website experience | Not rated yet | Not rated yet |
| Reliability | 7.0/10 | 2.5/10 |
| Packaging | Not rated yet | Not rated yet |
| Ships from | United States | United States |
| Ships to | United States | United States |
| Median price per mg | US$4.00 | US$6.34 |
| 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)
| Blackline Scientific | Limitless Biotech | |
|---|---|---|
| Transparency Score | 5.0 | 4.0 |
| Testing transparency | 4.6 | 4.6 |
| Contact transparency | – | 10.0 |
| Documentation | 3.4 | 4.2 |
| 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 |
| Years tracked | 0.1 | 0.1 |
| Refund policy clear | Not yet assessed | Not yet assessed |
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