The Peptide Directory

Research Peptide Vendors: page 3

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.

How a fact gets onto The Peptide Directory Four steps: read the vendor's or agency's public page; record the fact with its URL and check date; publish it as a source slip; re-check on a schedule. Facts that cannot be traced to a public page are not published. 1 Read the public page COA index, quality page, FDA letter 2 Record the fact Exact wording, URL, check date 3 Publish as a slip Fact beside its source and date 4 Re-check Prices monthly, FDA letters weekly dated No public source, no fact.
vendors listed
71
with a public COA or test page
42
name a testing lab
16
Filter

Peptide vendors (49–71 of 71)

Default order: published criteria, with editorial spacing of related vendors How this order works · Strict criteria ranking · Sort A–Z instead

  1. Eros Peptides

    erospeptides.com

    Online seller of research peptides with a 114-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  2. Verified Peptides

    verifiedpeptides.co

    Online seller of research peptides with a 58-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  3. OmegAmino

    omegamino.net

    Online seller of research peptides with a 66-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  4. Atomik Labz

    atomiklabz.co

    Online seller of research peptides with a 298-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  5. Peptide Worldwide

    peptidesworldwide.com

    Online seller of research peptides with a 121-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  6. Pharma Grade Peptides

    pharmagradepeptides.org

    Online seller of research peptides with a 43-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  7. Extreme Peptides

    extremepeptides.com

    Online seller of research peptides with a 85-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  8. PureRawz

    purerawz.co

    Online seller of SARMs, peptides and nootropics marketed for laboratory research; no dedicated COA page found in its navigation.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    Yes, September 8, 2025

  9. Southern Aminos

    southernaminos.com

    Online seller of research peptides with a 70-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  10. Dynamic Peptide

    dynamicpeptide.com

    Online seller of research peptides with a 51-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  11. Biotech Peptides

    biotechpeptides.com

    Research-peptide seller that offers custom synthesis and says its peptides are synthesized and lyophilized in the USA.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  12. Amino Club

    aminoclub.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  13. Elite Research USA

    eliteresearchusa.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  14. Flawless Compounds

    flawlesscompounds.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  15. Glow Aminos

    glowaminos.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  16. Hybiopeptides

    hybiopeptides.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  17. Integrative Peptides

    integrativepeptides.com

    Online seller of research peptides with a 70-item public catalog.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  18. Labsourced

    labsourced.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  19. LiliPeptide

    lilipeptide.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  20. Limitless Biotech

    limitlesslifenootropics.com

    Research-peptide seller (domain limitlesslifenootropics.com) with a published quality statement; homepage copy references HPLC, LC-MS, endotoxin and sterility testing.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  21. NextechLabs

    nextechlabs.com

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  22. Skye Peptides

    skyepeptides.co

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

  23. Tydes

    tydes.co

    Online seller of research peptides.

    COA page
    Not found
    Labs named
    None found
    FDA letter
    None found

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.