2026 Research Peptide Vendor Rankings
Research peptide suppliers ranked by an evidence-based 8-category star score.
Rankings
| # | Vendor | Rating | Summary | |
|---|---|---|---|---|
| 1 | Simple Research Peptides | ★★★★☆ 3.94 | A value-focused vendor with the lowest BPC-157 price in this comparison, a large catalog and an unusually hands-on owner who offers free 30-minute consultations and phone/text support. | Review |
| 2 | Protide Health | ★★★★☆ 3.75 | A polished, testing-focused vendor with public CoAs and fast shipping, priced in the middle of the market. | Review |
| 3 | Simple Peptide | ★★★½☆ 3.5 | A Florida-based vendor (Delray Beach) with a searchable, lot-level CoA archive from a named lab, at higher prices. | Review |
| 4 | Core Peptides | ★★★½☆ 3.44 | An established vendor (since 2019) with same-day shipping and a 100+ product catalog, but conflicting findings on CoA traceability. | Review |
| 5 | Biotech Peptides | ★★★½☆ 3.38 | A mid-size Las Vegas vendor with same-day dispatch and MZ Biolabs testing, but CoAs that can't be checked with the lab. | Review |
| 6 | Oath Research | ★★★½☆ 3.31 | A young vendor (formerly Oath Peptides) with one of the most verifiable CoA programs in this comparison, but little independent customer-review history. | Review |
| 7 | Umbrella Labs | ★★★½☆ 3.31 | The largest catalog in this comparison, with public CoAs and free standard shipping, but a strict no-refund policy. | Review |
| 8 | Peptide Pro | ★★★½☆ 3.31 | A newer Tennessee vendor with strong Trustpilot reviews and generous free-shipping thresholds, but its site and lab results sit behind a login. | Review |
| 9 | BioLongevity Labs | ★★★☆☆ 3.06 | One of the largest public CoA libraries (two lab-checkable labs) and 2-3 day delivery, at some of the highest prices reviewed. | Review |
| 10 | Limitless Life | ★★★☆☆ 3.0 | A long-running brand with a wide range of formats and public batch CoAs, but prices behind a login and weak review scores. | Review |
Not ranked: Behemoth Labz. behemothlabz.com now says: 'We do not sell or ship products directly, compare listed third-party research suppliers.' It's an info and comparison site, not a vendor (fetched Oct 7, 2026).