#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
Vendor Index
We rate research peptide vendors on five things that matter: purity & COA transparency, price, shipping, service, and catalog depth. No paid placements — rankings are determined before any commercial relationship.
U.S.-based research peptide supplier with per-batch COAs