Alpha Peptides vs Limitless Biotech
Alpha Peptides scores higher, 71 to 61. The widest gap is documentation depth. Same formula, same data fields, October 2026.
Factor by factor
| Factor | Alpha Peptides | Limitless Biotech | Edge |
|---|---|---|---|
| Testing & certificates | 92 | 82 | Alpha Peptides |
| Documentation depth | 51 | 15 | Alpha Peptides |
| Transparency | 100 | 94 | Alpha Peptides |
| Track record | 12 | 19 | Limitless Biotech |
| Catalog | 63 | 70 | Limitless Biotech |
| Pricing | 45 | 40 | Alpha Peptides |
| Ordering & service | 62 | 40 | Alpha Peptides |
Fact sheets side by side
| Alpha Peptides | Limitless Biotech | |
|---|---|---|
| Overall score | 71/100 (#9) | 61/100 (#19) |
| Status | Operating | Operating |
| Based in | Nashua, NH | Pensacola, FL |
| Founded | 2025 | Not stated |
| Third-party testing | Yes | Yes |
| Laboratories named | Kovera Labs (COA link redirect), Analytical Formulations (COA host), Finnrick (Tesamorelin certificate) | None named |
| Public certificates | Yes | Yes |
| Lot-specific certificates | Yes | Yes |
| Formats | vials, blends | vials, nasal, capsules, blends |
| Catalog size | ≈22 | — |
| BPC-157 5 mg listed price | — | — |
| Free shipping from | $200 | — |
| Payments | card | Not stated |
| Ships internationally | No | Not verified |
| Research-use disclaimer | Yes | Yes |
| FDA warning letter | None found | None found |
Read the full reviews: Alpha Peptides review · Limitless Biotech 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 with peptide blends.
The factor that separates them
The widest gap is documentation depth (51 vs 15). What that factor measures is explained in how to read a certificate of analysis and lot-level vs sample testing.
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 Limitless Biotech?
On our formula Alpha Peptides scores higher (71 vs 61). The largest gap is in documentation depth (51 vs 15). "Better" depends on what you weight; both fact sheets are on this page.
Do both publish certificates of analysis?
Alpha Peptides: yes. Limitless Biotech: yes. Lot-specific certificates — Alpha Peptides: yes; Limitless Biotech: yes.
Which is cheaper?
We could not compare a like-for-like listing; price tiers are unknown (Alpha Peptides) and unknown (Limitless Biotech).