Core Peptides vs Swiss Chems
Core Peptides scores higher, 74 to 59. The widest gap is track record. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Core Peptides | Swiss Chems | Edge |
|---|---|---|---|
| Testing & certificates | 84 | 88 | Swiss Chems |
| Documentation depth | 40 | 58 | Swiss Chems |
| Transparency | 100 | 100 | Even |
| Track record | 44 | 4 | Core Peptides |
| Catalog | 87 | 70 | Core Peptides |
| Pricing | 64 | 50 | Core Peptides |
| Ordering & service | 65 | 95 | Swiss Chems |
Fact sheets side by side
| Core Peptides | Swiss Chems | |
|---|---|---|
| Overall score | 74/100 (#4) | 59/100 (#22) |
| Status | Operating | FDA warning letter |
| Based in | Orlando, FL | New York, NY |
| Founded | 2019 | 2018 |
| Third-party testing | Yes | Yes |
| Laboratories named | Vanguard Laboratory | Janoshik Analytical |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Yes |
| Formats | vials, blends, topical | capsules, vials, bulk, blends |
| Catalog size | ≈104 | — |
| BPC-157 5 mg listed price | $52 | — |
| Free shipping from | $200 | $100 |
| Payments | card | card, crypto, zelle, ach |
| Ships internationally | No | Yes |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | 2024-12-10 |
Read the full reviews: Core Peptides review · Swiss Chems 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 take card payments · Suppliers with peptide blends.
The factor that separates them
The widest gap is track record (44 vs 4). Track record includes FDA letters; see how to check an FDA warning letter.
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 Swiss Chems?
On our formula Core Peptides scores higher (74 vs 59). The largest gap is in track record (44 vs 4). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Core Peptides: yes. Swiss Chems: yes. Lot-specific certificates — Core Peptides: yes; Swiss Chems: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are mid (Core Peptides) and unknown (Swiss Chems).