Buying guide
Best US peptide vendors
Next Gen Peptides is the highest-scoring vendor publishing a United States address, at 93.8 of 100 on 49 third-party certificates. 45 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.
45 vendors publishing a US address of 57 indexed · 585 certificates read · last verified 28 Sept 2026
The top 10
| # | Vendor | Score | Certificates | Laboratory | Published address | Visit |
|---|---|---|---|---|---|---|
| 1 | Next Gen Peptides | 93.8 | 49 | ILS Laboratories | Not published | Site |
| 2 | Ascend Science | 90.1 | 27 | Kovera Labs and/or ILS Labs, Kovera Labs, ILS Laboratories | 134 Land Grant St 2, St. Augustine, FL 32092 | Site |
| 3 | Amino Club | 88.3 | 6 | ILS Laboratories | 241 Molnar Dr Suite 202, Elmwood Park, NJ 07407, US | Site |
| 4 | Modern Aminos | 88.1 | 27 | Freedom Diagnostics Testing | 9169 W State St #1451 Garden City, ID 83714 US | Site |
| 5 | Origin Labs | 87.7 | 24 | Freedom Diagnostics Testing | 45 Main St Ste 240 PMB 857348, Brooklyn, NY 11201-1098 | Site |
| 6 | Bench Grade Peptides | 86.8 | 53 | AV Analytics, Freedom Diagnostics Testing | 8 The Green, Dover, DE 19901 | Site |
| 7 | Polaris Peptides | 86.6 | 47 | TrustPointe Analytics LLC, BTLabs | 304 S Jones Blvd #3020 Las Vegas, NV 89107 | Site |
| 8 | Hydro Research Peptides | 86.5 | 17 | ILS Laboratories, Janoshik Analytical | Not published | Site |
| 9 | PeptidePlugs | 86.3 | 103 | Freedom Diagnostics Testing | 126 Holmes Rd #8, Liberty Hill, TX 78642 | Site |
| 10 | Simple Peptide | 84.9 | 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.
12 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.