Research Peptide Vendors: page 2
Compare 71 research peptide vendors on facts we checked on their own websites on October 19, 2026 — not on scores. The default order starts from published criteria (transparency, then core compounds in stock, then typical price per mg); editors also adjust placement to spread out vendors with related ownership or shared suppliers so no group clusters together (how the order works). Use the sort links below the filters to see a strict ranking.
- 71
- 42
- 16
Peptide vendors (25–48 of 71)
Default order: published criteria, with editorial spacing of related vendors
-
Amino Amigos
Online seller of research peptides with a 38-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Sports Technology Labs
Online seller of research peptides with a 67-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Backroad Aminos
US-based online seller of research peptides with a 54-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Voltera Sciences
Online seller of research peptides with a 22-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Ramp Peptides
Online seller of research peptides with a 47-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Astro Peptides
Online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Liberty Peptides
Research-peptide seller that runs a COA library and says every product has a certificate of analysis.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Loti Labs
Online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
NextGenPeps
US-based online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
NUPEPS Peptides
Online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
NuScience Peptides
US-based online seller of research peptides with a 53-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- Yes, August 24, 2026
-
Paradigm Peptides
Online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Science.bio
US-based online seller of research peptides with a 201-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Simple Peptide
US-based online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Studz Aminos
Online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
TriVial BioWorks
Online seller of research peptides, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
Xcel Peptides
US-based online seller of research peptides with a 88-item public catalog, a testing page.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
-
BioGenix Peptides
US-based online seller of research peptides with a 74-item public catalog.
- COA page
- Not found
- Labs named
- None found
- FDA letter
- None found
-
Polaris Peptides
Online seller of research peptides with a 62-item public catalog.
- COA page
- Not found
- Labs named
- None found
- FDA letter
- None found
-
Trusted Peptide
US-based online seller of research peptides with a 7-item public catalog.
- COA page
- Not found
- Labs named
- None found
- FDA letter
- None found
-
JetPeps
Online seller of research peptides with a 26-item public catalog, shipping within the US; no certificate-of-analysis page found.
- COA page
- Not found
- Labs named
- None found
- FDA letter
- None found
-
Pinnacle Peptide Labs
US-based online seller of research peptides with a 30-item public catalog.
- COA page
- Not found
- Labs named
- None found
- FDA letter
- None found
-
Sunrise BioResearch
Online seller of research peptides with a 103-item public catalog.
- COA page
- Not found
- Labs named
- None found
- FDA letter
- None found
-
Costides
Wholesale supplier selling research peptides only in 10-vial packs (22 compounds, 37 pack SKUs), priced per pack with volume discounts up to 15% and a Certificate of Analysis published for each released lot.
- COA page
- Public
- Labs named
- None found
- FDA letter
- None found
No vendors match this filter. Choose “All” to see every vendor.
Prices per mg for BPC-157, TB-500, semaglutide, tirzepatide and retatrutide are on the price comparison; FDA enforcement is on peptide warning letters. Looking for prescription programs instead? See telehealth providers.
About our vendor directory
We list a vendor when we can read and cite its public pages. For each one we record only checkable facts: whether it publishes a certificate-of-analysis page, which laboratories it names, what it says about research-use-only status and shipping, each with the URL and check date.
We do not buy samples, run lab tests or score vendors yet, so there are no ratings here. The default order starts from three published facts (transparency, core compounds in stock, typical price per mg); editors also adjust placement to spread out vendors with related ownership or shared suppliers, including businesses connected to our owners, so no group clusters together. That adjustment can place one of those vendors near the top. It is not a quality ranking. A strict criteria ranking with no adjustment and an A–Z view are also available. Vendors whose sites blocked our automated check (3 on October 19, 2026) are left out rather than described from second-hand sources.
See our affiliate disclosure, disclaimer and 2026 transparency report.