Best bulk and wholesale suppliers
Suppliers that list bulk quantities or a wholesale program for laboratories and resellers.
| # | Supplier | Score | Third-party testing | Public COAs | Lot-level | Reference price | Based | |
|---|---|---|---|---|---|---|---|---|
| 15 | Peptide Prospeptidepros.net | 66/100 | Limited | Yes | Yes | $47.25 | US | ReviewVisit site |
| 16 |  Verified Peptidesverifiedpeptides.com | 66/100 | Yes | Yes | Yes | — | US | ReviewVisit site |
| 21 | Blue Sky Peptideblueskypeptide.com | 59/100 | Yes | Yes | Not verified | $42.87 | US | ReviewVisit site |
| 23 |  Swiss Chemsswisschems.is | 59/100 | Yes | Yes | Yes | — | US | ReviewVisit site |
| 24 |  Umbrella Labsumbrellalabs.is | 59/100 | Yes | Yes | Not verified | $48.99 | US | ReviewVisit site |
| 26 |  QSCqscpeptide.com | 58/100 | Limited | Not verified | Not verified | — | CN | ReviewVisit site |
| 27 |  Receptor Chemreceptorchem.co.uk | 58/100 | Limited | Yes | Not verified | — | UK | ReviewVisit site |
| 29 |  Geo Peptidesgeopeptides.com | 55/100 | Limited | Yes | Not verified | $33.99 | US | ReviewVisit site |
| 30 |  Extreme Peptidesextremepeptides.com | 52/100 | Not verified | Yes | Not verified | $48.99 | US | ReviewVisit site |
| 39 |  Atomik Labzatomiklabz.com | 37/100 | Limited | No | Not verified | $40 | US | ReviewVisit site |
Why Peptide Pros leads this list
Peptide Pros scores 66/100 overall: testing 66, transparency 68, track record 36. Established vendor (online since 2013, HQ Miami Beach FL, ships from a Colorado facility via USPS) selling lyophilized peptides plus liquid SARMs and research chemicals. BPC-157 5mg is $47.25 (list $56.60) with a >99% purity claim. The public COA page holds ~21 lot-numbered reports dated 2021-2023 from MZ Biolabs (MS + UV purity), none more recent and none linked from product pages. Accepts cards, e-check, Bitcoin, mailed checks and bank wire; free US priority shipping over $150. Trustpilot removed its profile; no FDA warning letter found as of 2026-10-19.
Frequently asked questions
Which supplier leads for bulk and wholesale suppliers?
Peptide Pros with 66/100, followed by Verified Peptides (66).
How is this list built?
It is the overall ranking filtered by one verifiable attribute from each supplier fact sheet. No separate weighting is applied.
Are these products for personal use?
No. Every supplier listed sells materials labeled for laboratory research use only, and this site does not describe or endorse any other use.