Head to head · October 2026
Core Peptides vs Extreme Peptides
Core Peptides scores higher, 78 to 52. The widest gap is testing & certificates. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Core Peptides | Extreme Peptides | Edge |
|---|---|---|---|
| Testing & certificates | 84 | 28 | Core Peptides |
| Transparency | 100 | 72 | Core Peptides |
| Track record | 44 | 57 | Extreme Peptides |
| Catalog | 87 | 46 | Core Peptides |
| Pricing | 64 | 69 | Extreme Peptides |
| Ordering & service | 65 | 80 | Extreme Peptides |
Fact sheets side by side
| Core Peptides | Extreme Peptides | |
|---|---|---|
| Overall score | 78/100 (#2) | 52/100 (#30) |
| Status | Operating | Operating |
| Based in | Orlando, FL | US |
| Founded | 2019 | 2010 |
| Third-party testing | Yes | Not verified |
| Laboratories named | Vanguard Laboratory | None named |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Not verified |
| Formats | vials, blends, topical | vials, bulk |
| Catalog size | ≈104 | — |
| BPC-157 5 mg listed price | $52 | $48.99 |
| Free shipping from | $200 | $99 |
| Payments | card | card, crypto, ach |
| Ships internationally | No | No |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Core Peptides · Extreme Peptides. Both suppliers sell materials labeled for laboratory research use only.
Frequently asked questions
Which is better, Core Peptides or Extreme Peptides?
On our formula Core Peptides scores higher (78 vs 52). The largest gap is in testing & certificates (84 vs 28). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Core Peptides: yes. Extreme Peptides: yes. Lot-specific certificates — Core Peptides: yes; Extreme Peptides: not verified.
Which is cheaper?
On the reference listing (BPC-157, 5 mg) Extreme Peptides is lower: $48.99 vs $52.