Peptide RankingKoi Peptides vs Peptide Pros
Koi Peptides scores higher, 72 to 63. The widest gap is documentation depth. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Koi Peptides | Peptide Pros | Edge |
|---|---|---|---|
| Testing & certificates | 82 | 66 | Koi Peptides |
| Documentation depth | 65 | 45 | Koi Peptides |
| Transparency | 86 | 68 | Koi Peptides |
| Track record | 40 | 36 | Koi Peptides |
| Catalog | 48 | 64 | Peptide Pros |
| Pricing | 65 | 82 | Peptide Pros |
| Ordering & service | 90 | 95 | Peptide Pros |
Fact sheets side by side
| Koi Peptides | Peptide Pros | |
|---|---|---|
| Overall score | 72/100 (#7) | 63/100 (#17) |
| Status | Operating | Operating |
| Based in | Sheridan, WY (registered address); warehouses Austin, TX and Long Beach, CA | Miami Beach, FL |
| Founded | 2022 | 2013 |
| Third-party testing | Yes | Limited |
| Laboratories named | Freedom Diagnostics | MZ Biolabs |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Yes |
| Formats | vials | vials, blends, bulk |
| Catalog size | — | — |
| BPC-157 5 mg listed price | — | $47.25 |
| Free shipping from | $200 | $150 |
| Payments | card, ach, wire | card, ach, crypto, wire |
| Ships internationally | Yes | Yes |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Koi Peptides review · Peptide Pros 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 ship internationally · Suppliers that take card payments.
The factor that separates them
The widest gap is documentation depth (65 vs 45). What that factor measures is explained in how to read a certificate of analysis and lot-level vs sample testing.
Related comparisons
BioLongevity Labs vs Koi Peptides · Koi Peptides vs Peptide Perfection · Nexaph vs Peptide Pros
Frequently asked questions
Which is better, Koi Peptides or Peptide Pros?
On our formula Koi Peptides scores higher (72 vs 63). The largest gap is in documentation depth (65 vs 45). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Koi Peptides: yes. Peptide Pros: yes. Lot-specific certificates — Koi Peptides: yes; Peptide Pros: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are mid (Koi Peptides) and mid (Peptide Pros).