Head to head · October 2026
Paramount Peptides vs USA Peptides
Paramount Peptides scores higher, 76 to 27. The widest gap is testing & certificates. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Paramount Peptides | USA Peptides | Edge |
|---|---|---|---|
| Testing & certificates | 88 | 6 | Paramount Peptides |
| Transparency | 100 | 40 | Paramount Peptides |
| Track record | 39 | 0 | Paramount Peptides |
| Catalog | 79 | 63 | Paramount Peptides |
| Pricing | 65 | 45 | Paramount Peptides |
| Ordering & service | 45 | 57 | USA Peptides |
Fact sheets side by side
| Paramount Peptides | USA Peptides | |
|---|---|---|
| Overall score | 76/100 (#4) | 27/100 (#46) |
| Status | Operating | Operating |
| Based in | Irvine, CA | US |
| Founded | 2012 | Not stated |
| Third-party testing | Yes | Not verified |
| Laboratories named | Janoshik | None named |
| Public certificates | Yes | No |
| Lot-specific certificates | Yes | Not verified |
| Formats | vials, capsules, blends | vials, blends |
| Catalog size | ≈78 | ≈16 |
| BPC-157 5 mg listed price | — | — |
| Free shipping from | $500 | — |
| Payments | Not stated | card |
| Ships internationally | No | Not verified |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Paramount Peptides · USA Peptides. Both suppliers sell materials labeled for laboratory research use only.
Frequently asked questions
Which is better, Paramount Peptides or USA Peptides?
On our formula Paramount Peptides scores higher (76 vs 27). The largest gap is in testing & certificates (88 vs 6). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Paramount Peptides: yes. USA Peptides: no. Lot-specific certificates — Paramount Peptides: yes; USA Peptides: not verified.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are mid (Paramount Peptides) and premium (USA Peptides).