Buying guide
Best US peptide vendors
Origin Labs is the highest-scoring vendor publishing a United States address, at 89.1 of 100 on 25 third-party certificates. 44 of the 57 vendors indexed here publish a US postal address; the shortlist below is the top 10 of them, ranked by the same published rubric used everywhere on this site.
44 vendors publishing a US address of 57 indexed · 627 certificates read · last verified 5 Nov 2026
The top 10
| # | Vendor | Score | Certificates | Laboratory | Published address | Visit |
|---|---|---|---|---|---|---|
| 1 |  Origin Labs | 89.1 | 25 | ILS Laboratories, Freedom Diagnostics Testing | 45 Main St Ste 240 PMB 857348, Brooklyn, NY 11201-1098 | Site |
| 2 |  Next Gen Peptides | 87.7 | 114 | ILS Laboratories | Not published | Site |
| 3 |  ZC Labs | 87.2 | 39 | Freedom Diagnostics Testing | PO Box 284, Myrtle Beach, SC 29578 | Site |
| 4 |  Amino Club | 86.1 | 23 | ILS Laboratories, Freedom Diagnostics Testing | 241 Molnar Dr Suite 202, Elmwood Park, NJ 07407, US | Site |
| 5 |  PeptidePlugs | 82.6 | 70 | Freedom Diagnostics Testing | 126 Holmes Rd #8, Liberty Hill, TX 78642 | Site |
| 6 |  Modern Aminos | 79.7 | 30 | Freedom Diagnostics Testing, Vanguard Laboratory | 9169 W State St #1451 Garden City, ID 83714 US | Site |
| 7 |  Bench Grade Peptides | 79.4 | 53 | AV Analytics, Freedom Diagnostics Testing | 8 The Green, Dover, DE 19901 | Site |
| 8 |  Hydro Research Peptides | 78.7 | 21 | ILS Laboratories, Janoshik Analytical | Not published | Site |
| 9 |  One Aminos | 78 | 27 | United Laboratories | 14836 Silverstone Dr, Silver Spring, MD 20905 | Site |
| 10 |  Simple Peptide | 77.2 | 29 | Freedom Diagnostics Testing | 6586 W Atlantic Ave Ste #1112 Delray Beach, FL 33446 | Site |
What counts as a US vendor here
One thing, stated so it can be checked: the vendor publishes a United States postal address on its own site. That is a fact with a source and a date, which is why it is the test.
It is deliberately not a claim about where the peptide was made, where it ships from, or whether the address is an office. Several addresses above are registered-agent or mailbox suites, and two vendors share the same Sheridan, Wyoming building. A published address tells you there is a jurisdiction and an entity to write to. It does not tell you there is a warehouse.
13 indexed vendors publish no address we could find. They are absent from this page because their country is unknown, not because they are known to be elsewhere.
Related
- The full ranking, every vendor regardless of country.
- Vendors whose lab reports you can check yourself.
- Whether paying more buys better evidence.