Ascension Peptides vs Pure Peptide Labs
Ascension Peptides scores higher, 77 to 74. The widest gap is documentation depth. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Ascension Peptides | Pure Peptide Labs | Edge |
|---|---|---|---|
| Testing & certificates | 100 | 89 | Ascension Peptides |
| Documentation depth | 68 | 83 | Pure Peptide Labs |
| Transparency | 94 | 86 | Ascension Peptides |
| Track record | 11 | 19 | Pure Peptide Labs |
| Catalog | 71 | 71 | Even |
| Pricing | 60 | 50 | Ascension Peptides |
| Ordering & service | 75 | 70 | Ascension Peptides |
Fact sheets side by side
| Ascension Peptides | Pure Peptide Labs | |
|---|---|---|
| Overall score | 77/100 (#2) | 74/100 (#5) |
| Status | Operating | Operating |
| Based in | Kansas City, MO (mailing address on contact page) | Cedar Park, TX |
| Founded | Not stated | 2024 |
| Third-party testing | Yes | Yes |
| Laboratories named | Kovera Labs, MZ Biolabs | Freedom Diagnostics, Kovera Labs, MDx BioAnalytical Laboratory, Precision Mass Spec |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Yes |
| Formats | vials, blends | vials, blends |
| Catalog size | ≈42 | ≈63 |
| BPC-157 5 mg listed price | — | — |
| Free shipping from | — | $0 |
| Payments | card, ach | card, ach |
| Ships internationally | No | No |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Ascension Peptides review · Pure Peptide Labs review. Both suppliers sell materials labeled for laboratory research use only.
Both appear on: US-based suppliers · Suppliers with public certificates of analysis · Lot-level third-party testing · Suppliers that take card payments · Suppliers with peptide blends.
The factor that separates them
The widest gap is documentation depth (68 vs 83). What that factor measures is explained in how to read a certificate of analysis and lot-level vs sample testing.
Related comparisons
Core Peptides vs Pure Peptide Labs · Ascension Peptides vs Paramount Peptides · Paramount Peptides vs Pure Peptide Labs
Frequently asked questions
Which is better, Ascension Peptides or Pure Peptide Labs?
On our formula Ascension Peptides scores higher (77 vs 74). The largest gap is in documentation depth (68 vs 83). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Ascension Peptides: yes. Pure Peptide Labs: yes. Lot-specific certificates — Ascension Peptides: yes; Pure Peptide Labs: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are mid (Ascension Peptides) and unknown (Pure Peptide Labs).