#1
Phiogen
U.S.-based research peptide supplier with per-batch COAs
9.0/ 10
3rd-party tested
United States
10% off w/ PEPS
- Purity & COA
- 9.4
- Price
- 8.6
- Shipping
- 9.0
- Service
- 8.8
- Selection
- 9.2
Independent Vendor Reviews
Where to actually buy research peptides.
We score peptide suppliers across five things that matter: purity and COA transparency, price, shipping, customer service, and catalog depth. Compare vendors side-by-side, then click through to the one that fits.
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