Eternal Peptides vs Pure Peptide Labs
Pure Peptide Labs scores higher, 74 to 22. The widest gap is testing & certificates. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Eternal Peptides | Pure Peptide Labs | Edge |
|---|---|---|---|
| Testing & certificates | 6 | 89 | Pure Peptide Labs |
| Documentation depth | 38 | 83 | Pure Peptide Labs |
| Transparency | 14 | 86 | Pure Peptide Labs |
| Track record | 9 | 19 | Pure Peptide Labs |
| Catalog | 46 | 71 | Pure Peptide Labs |
| Pricing | 45 | 50 | Pure Peptide Labs |
| Ordering & service | 33 | 70 | Pure Peptide Labs |
Fact sheets side by side
| Eternal Peptides | Pure Peptide Labs | |
|---|---|---|
| Overall score | 22/100 (#48) | 74/100 (#5) |
| Status | Operating | Operating |
| Based in | US | Cedar Park, TX |
| Founded | Not stated | 2024 |
| Third-party testing | Not verified | Yes |
| Laboratories named | None named | Freedom Diagnostics, Kovera Labs, MDx BioAnalytical Laboratory, Precision Mass Spec |
| Public certificates | Not verified | Yes |
| Lot-specific certificates | Not verified | Yes |
| Formats | Not stated | vials, blends |
| Catalog size | ≈23 | ≈63 |
| BPC-157 5 mg listed price | — | — |
| Free shipping from | $200 | $0 |
| Payments | Not stated | card, ach |
| Ships internationally | No | No |
| Research-use disclaimer | Not verified | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Eternal Peptides review · Pure Peptide Labs 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 (6 vs 89). What that factor measures is explained in how to read a certificate of analysis and lot-level vs sample testing.
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Frequently asked questions
Which is better, Eternal Peptides or Pure Peptide Labs?
On our formula Pure Peptide Labs scores higher (74 vs 22). The largest gap is in testing & certificates (6 vs 89). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Eternal Peptides: not verified. Pure Peptide Labs: yes. Lot-specific certificates — Eternal Peptides: not verified; Pure Peptide Labs: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are unknown (Eternal Peptides) and unknown (Pure Peptide Labs).