Head to head · October 2026
Koi Peptides vs Paramount Peptides
Paramount Peptides scores higher, 76 to 72. The widest gap is ordering & service. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Koi Peptides | Paramount Peptides | Edge |
|---|---|---|---|
| Testing & certificates | 82 | 88 | Paramount Peptides |
| Documentation depth | 65 | 65 | Even |
| Transparency | 86 | 100 | Paramount Peptides |
| Track record | 40 | 39 | Koi Peptides |
| Catalog | 48 | 79 | Paramount Peptides |
| Pricing | 65 | 65 | Even |
| Ordering & service | 90 | 45 | Koi Peptides |
Fact sheets side by side
| Koi Peptides | Paramount Peptides | |
|---|---|---|
| Overall score | 72/100 (#7) | 76/100 (#3) |
| Status | Operating | Operating |
| Based in | Sheridan, WY (registered address); warehouses Austin, TX and Long Beach, CA | Irvine, CA |
| Founded | 2022 | 2012 |
| Third-party testing | Yes | Yes |
| Laboratories named | Freedom Diagnostics | Janoshik |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Yes |
| Formats | vials | vials, capsules, blends |
| Catalog size | — | ≈78 |
| BPC-157 5 mg listed price | — | — |
| Free shipping from | $200 | $500 |
| Payments | card, ach, wire | Not stated |
| Ships internationally | Yes | No |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Koi Peptides · Paramount Peptides. Both suppliers sell materials labeled for laboratory research use only.
Frequently asked questions
Which is better, Koi Peptides or Paramount Peptides?
On our formula Paramount Peptides scores higher (76 vs 72). The largest gap is in ordering & service (90 vs 45). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Koi Peptides: yes. Paramount Peptides: yes. Lot-specific certificates — Koi Peptides: yes; Paramount Peptides: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are mid (Koi Peptides) and mid (Paramount Peptides).