Peptide RankingCore Peptides vs USA Peptides
Core Peptides scores higher, 74 to 24. The widest gap is testing & certificates. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Core Peptides | USA Peptides | Edge |
|---|---|---|---|
| Testing & certificates | 84 | 6 | Core Peptides |
| Documentation depth | 40 | 0 | Core Peptides |
| Transparency | 100 | 40 | Core Peptides |
| Track record | 44 | 0 | Core Peptides |
| Catalog | 87 | 63 | Core Peptides |
| Pricing | 64 | 45 | Core Peptides |
| Ordering & service | 65 | 57 | Core Peptides |
Fact sheets side by side
| Core Peptides | USA Peptides | |
|---|---|---|
| Overall score | 74/100 (#4) | 24/100 (#46) |
| Status | Operating | Operating |
| Based in | Orlando, FL | US |
| Founded | 2019 | Not stated |
| Third-party testing | Yes | Not verified |
| Laboratories named | Vanguard Laboratory | None named |
| Public certificates | Yes | No |
| Lot-specific certificates | Yes | Not verified |
| Formats | vials, blends, topical | vials, blends |
| Catalog size | ≈104 | ≈16 |
| BPC-157 5 mg listed price | $52 | — |
| Free shipping from | $200 | — |
| Payments | card | card |
| Ships internationally | No | Not verified |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Core Peptides review · USA Peptides review. Both suppliers sell materials labeled for laboratory research use only.
Both appear on: US-based suppliers · Suppliers that take card payments · Suppliers with peptide blends.
The factor that separates them
The widest gap is testing & certificates (84 vs 6). What that factor measures is explained in how to read a certificate of analysis and lot-level vs sample testing.
Related comparisons
Core Peptides vs Pure Peptide Labs · Core Peptides vs Paramount Peptides · BioLongevity Labs vs Core Peptides
Frequently asked questions
Which is better, Core Peptides or USA Peptides?
On our formula Core Peptides scores higher (74 vs 24). The largest gap is in testing & certificates (84 vs 6). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Core Peptides: yes. USA Peptides: no. Lot-specific certificates — Core Peptides: yes; USA Peptides: not verified.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are mid (Core Peptides) and premium (USA Peptides).