Ascension Peptides vs Prime Peptides
Ascension Peptides scores higher, 77 to 59. The widest gap is ordering & service. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Ascension Peptides | Prime Peptides | Edge |
|---|---|---|---|
| Testing & certificates | 100 | 94 | Ascension Peptides |
| Documentation depth | 68 | 63 | Ascension Peptides |
| Transparency | 94 | 68 | Ascension Peptides |
| Track record | 11 | 0 | Ascension Peptides |
| Catalog | 71 | 63 | Ascension Peptides |
| Pricing | 60 | 70 | Prime Peptides |
| Ordering & service | 75 | 45 | Ascension Peptides |
Fact sheets side by side
| Ascension Peptides | Prime Peptides | |
|---|---|---|
| Overall score | 77/100 (#2) | 59/100 (#21) |
| Status | Operating | FDA warning letter |
| Based in | Kansas City, MO (mailing address on contact page) | Santa Barbara, CA |
| Founded | Not stated | Not stated |
| Third-party testing | Yes | Yes |
| Laboratories named | Kovera Labs, MZ Biolabs | Freedom Diagnostics, Horizon Analytical, Janoshik Analytical, Bioviridian |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Yes |
| Formats | vials, blends | vials, blends |
| Catalog size | ≈42 | ≈23 |
| BPC-157 5 mg listed price | — | — |
| Free shipping from | — | $150 |
| Payments | card, ach | Not stated |
| Ships internationally | No | No |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | 2024-12-10 |
Read the full reviews: Ascension Peptides review · Prime Peptides 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 with peptide blends.
The factor that separates them
The widest gap is ordering & service (75 vs 45). How every factor is computed is on the methodology page.
Related comparisons
Ascension Peptides vs Paramount Peptides · Ascension Peptides vs Core Peptides · Ascension Peptides vs Pure Peptide Labs
Frequently asked questions
Which is better, Ascension Peptides or Prime Peptides?
On our formula Ascension Peptides scores higher (77 vs 59). The largest gap is in ordering & service (75 vs 45). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Ascension Peptides: yes. Prime Peptides: yes. Lot-specific certificates — Ascension Peptides: yes; Prime Peptides: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are mid (Ascension Peptides) and mid (Prime Peptides).