Pure Peptide Labs vs US Peptides
Pure Peptide Labs scores higher, 74 to 28. The widest gap is testing & certificates. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Pure Peptide Labs | US Peptides | Edge |
|---|---|---|---|
| Testing & certificates | 89 | 6 | Pure Peptide Labs |
| Documentation depth | 83 | 0 | Pure Peptide Labs |
| Transparency | 86 | 66 | Pure Peptide Labs |
| Track record | 19 | 4 | Pure Peptide Labs |
| Catalog | 71 | 55 | Pure Peptide Labs |
| Pricing | 50 | 67 | US Peptides |
| Ordering & service | 70 | 32 | Pure Peptide Labs |
Fact sheets side by side
| Pure Peptide Labs | US Peptides | |
|---|---|---|
| Overall score | 74/100 (#5) | 28/100 (#43) |
| Status | Operating | Operating |
| Based in | Cedar Park, TX | Tarpon Springs, FL |
| Founded | 2024 | Not stated |
| Third-party testing | Yes | Not verified |
| Laboratories named | Freedom Diagnostics, Kovera Labs, MDx BioAnalytical Laboratory, Precision Mass Spec | None named |
| Public certificates | Yes | No |
| Lot-specific certificates | Yes | Not verified |
| Formats | vials, blends | vials |
| Catalog size | ≈63 | ≈15 |
| BPC-157 5 mg listed price | — | $46.39 |
| Free shipping from | $0 | — |
| Payments | card, ach | Not stated |
| Ships internationally | No | No |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Pure Peptide Labs review · US Peptides review. Both suppliers sell materials labeled for laboratory research use only.
Both appear on: US-based suppliers.
The factor that separates them
The widest gap is testing & certificates (89 vs 6). What that factor measures is explained in how to read a certificate of analysis and lot-level vs sample testing.
Related comparisons
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Frequently asked questions
Which is better, Pure Peptide Labs or US Peptides?
On our formula Pure Peptide Labs scores higher (74 vs 28). The largest gap is in testing & certificates (89 vs 6). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Pure Peptide Labs: yes. US Peptides: no. Lot-specific certificates — Pure Peptide Labs: yes; US Peptides: not verified.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are unknown (Pure Peptide Labs) and mid (US Peptides).