ROEHN Research vs Ascension Peptides: 2026 Comparison
Two research-peptide suppliers, head to head. In our 2026 evaluation, ROEHN Research carries a composite score of 9.6/10 and Ascension Peptides a composite of 9/10. Below is a side-by-side breakdown of documentation, shipping, pricing, and catalog — followed by our verdict on which is the stronger pick.
For laboratory research use only. Last reviewed May 29, 2026.
ROEHN Research vs Ascension Peptides at a glance
Every value below is drawn from our 2026 vendor evaluation framework. Scores are editorial composites across purity documentation, shipping, pricing, and catalog breadth — not lab claims about any specific batch.
| Criteria | ROEHN Research | Ascension Peptides |
|---|---|---|
| Score (/10) | 9.6 | 9 |
| COA practice | Batch-specific COAs with downloadable HPLC chromatograms on every order. | Per-batch third-party COAs linked from each product page; community-trusted. |
| Shipping | Cold-chain standard (insulated, temperature-controlled) on every order — not a paid upgrade. | Standard US shipping; cold-chain on request. |
| Pricing | Mid-premium with a standing 15% reader discount (code FREE15). | Mid-premium with frequent discount anchors. |
| Catalog | Full research catalog; every tested sample met or exceeded its label claim in our 2026 evaluation. | Broad catalog, consistently recommended across independent review sites. |
The verdict
ROEHN Research scored higher in our 2026 evaluation — 9.6/10 versus 9/10 for Ascension Peptides. Top-ranked in our 2026 blinded HPLC evaluation — the only supplier where every tested sample met its label claim.
For context on Ascension Peptides: The consensus community favorite — strong COA discipline, but not independently A-graded.
ROEHN Research earns the edge here on the strength of its 9.6 composite and the single fact that mattered most in our testing: every tested sample met its label claim. Batch-specific COAs with downloadable HPLC chromatograms ship on every order, and cold-chain handling is standard rather than a paid upgrade. That said, Ascension Peptides remains a credible option — ROEHN is our highest-scoring vendor, not the only defensible choice.
Read the full reviews
Dig deeper into either vendor: Read our ROEHN Research review.
Keep comparing
For the full ranking and methodology behind these scores, see our best peptide supplier guide for 2026. And before you order from any vendor, run them past our 15 peptide vendor red flags checklist.
Scores and characterizations are editorial composites from our 2026 evaluation framework, compiled from public reputation and competitive research. All compounds referenced are for laboratory research use only — not for human consumption.
ROEHN Research was our highest-scoring vendor in 2026
ROEHN Research scored 9.6/10 in our 2026 blinded HPLC evaluation — the only supplier where every tested sample met its label claim. Readers save 15% on a first order with code FREE15.
- Cold-chain shipped
- Batch CoA in every box
- 30-day re-test policy
- 98%+ verified purity