Alpha Peptides vs Peptide Warehouse
Alpha Peptides scores higher, 71 to 61. The widest gap is transparency. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Alpha Peptides | Peptide Warehouse | Edge |
|---|---|---|---|
| Testing & certificates | 92 | 82 | Alpha Peptides |
| Documentation depth | 51 | 63 | Peptide Warehouse |
| Transparency | 100 | 40 | Alpha Peptides |
| Track record | 12 | 11 | Alpha Peptides |
| Catalog | 63 | 70 | Peptide Warehouse |
| Pricing | 45 | 69 | Peptide Warehouse |
| Ordering & service | 62 | 80 | Peptide Warehouse |
Fact sheets side by side
| Alpha Peptides | Peptide Warehouse | |
|---|---|---|
| Overall score | 71/100 (#9) | 61/100 (#20) |
| Status | Operating | Operating |
| Based in | Nashua, NH | US |
| Founded | 2025 | Not stated |
| Third-party testing | Yes | Yes |
| Laboratories named | Kovera Labs (COA link redirect), Analytical Formulations (COA host), Finnrick (Tesamorelin certificate) | Freedom Diagnostics |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Yes |
| Formats | vials, blends | vials, blends |
| Catalog size | ≈22 | ≈55 |
| BPC-157 5 mg listed price | — | $52.99 |
| Free shipping from | $200 | $299 |
| Payments | card | card, zelle, crypto |
| Ships internationally | No | No |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Alpha Peptides review · Peptide Warehouse 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 transparency (100 vs 40). Transparency fields are listed in the red flags we record.
Related comparisons
Limitless Biotech vs Peptide Warehouse · Alpha Peptides vs BioLongevity Labs · Alpha Peptides vs Koi Peptides
Frequently asked questions
Which is better, Alpha Peptides or Peptide Warehouse?
On our formula Alpha Peptides scores higher (71 vs 61). The largest gap is in transparency (100 vs 40). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Alpha Peptides: yes. Peptide Warehouse: yes. Lot-specific certificates — Alpha Peptides: yes; Peptide Warehouse: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are unknown (Alpha Peptides) and mid (Peptide Warehouse).