Buy 4, Get 1 Free on eligible vialsSubscribe & Save · 10% off every deliveryCertificates of Analysis on requestSame-day dispatch when paid by 12:00 pm PacificOne discount per orderQualified laboratories · Age 21+
For laboratory research use only, not for human or veterinary use

Buy 4, Get 1 FreeAdd any 5 research vials. The lowest-priced one is free.

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Flat $14.95 contiguous-US shipping under 6 vials. 6+ vials use the bulk freight estimate at checkout.

Where to buy research peptides

One source for research peptides.

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Where to buy research peptides online: One Source Peptides supplies lyophilized research peptides to qualified laboratories, with Certificates of Analysis available on request. Research use only. Not for human or animal use.

  • Research use only
  • COA on request
  • Cold-chain dispatch
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The research catalog

Featured compounds

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Buy 4, Get 1 Free

Add any 5 research vials. The lowest-priced one is free.

  • 10% off your first order, new customers
  • Subscribe & Save: 10% off every delivery
  • One discount per order. Offers don't combine.
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Research use only

What is a peptide?

Research use only · 0:50

A short film on what these catalog materials are: a defined amino-acid sequence, supplied lyophilized, for laboratory research. Not for human or veterinary use, and not a protocol.

  1. 1
    A short chain of amino acids

    A peptide is a defined sequence of amino acids. In this catalog that is a research material, not a finished drug.

  2. 2
    Supplied lyophilized

    Vials in this catalog are lyophilized powder for in vitro and laboratory work by qualified researchers.

  3. 3
    Lot paperwork

    A Certificate of Analysis is the record of identity and purity for a lot. Certificates are available on request.

  4. 4
    What this is not

    Not for human or veterinary use. Not a protocol, a dose, or instructions for reconstitution or administration.

Stack AdvisorAsk about research pathwaysOpen

Stack Advisor: Research themes

Ask about research pathways

Pick a research pathway, or ask in the field below. The reply plays here and stays in this tab.

Catalog research themes. Not a protocol, a dose, or a claim about human outcomes.

Quick compliance note: One Source Peptides materials are Research Use Only, not for human or veterinary use, and not medical advice. I can map your topic to catalog research compounds and published research themes, and point you to literature. I will not give dosing, treatment plans, or disease claims. Everything should be verified against the lot Certificate of Analysis and peer-reviewed sources.

Any other questions? Look below.

Research themes

Ask a pathway, then open the catalog

These chips open a research theme in Stack Advisor. They are not protocols, dosing, or claims about human outcomes.

Documentation

The lot paperwork sits with the compound.

Certificates of Analysis are available on request. The library lists what is already published. Research use only.

Open the COA Library

Research bundles

Swipe the research bundles

All bundles
  • Research use onlyIn vitro and laboratory work
  • COA on requestCertificate of Analysis for your lot
  • Same-day dispatchOrders paid by 12:00 pm Pacific

Questions

Before you order

All questions
What are these products?
One Source Peptides supplies lyophilized research compounds for scientific, laboratory, and educational research. They are not for human or veterinary use.
Can I get a Certificate of Analysis?
Yes. Certificates of Analysis are available on request. Email info@onesourcepeptides.com or use the Contact form with the product and lot number. Published certificates are in the COA Library.
Who can buy?
Qualified researchers, laboratories, academic institutions, and other organizations doing legitimate laboratory research, age 21 or older. You are responsible for following the laws that apply to you.
How do I pay?
ACH bank transfer, card, and Zelle are the payment methods at checkout. Nothing is charged at checkout; we email payment instructions after the order request is recorded. Zelle is 4% off the merchandise total when you pay the One Source Peptides business account. Instructions are shown after the order is placed. This is not a personal Zelle account. A card order is reserved when it is placed, and card payment is completed with you before it ships. Contiguous United States shipping is a flat $14.95 on the amount due when fewer than 6 vials ship. Bulk orders of 6 or more vials show a freight estimate by vial count before the order is placed, and it is included in the amount due.