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Guide

Research peptides for laboratory use

Marathon Peptide Solutions supplies research peptides and related research compounds to laboratories and independent researchers across the United States. This page explains what we mean by research-grade, how to read our testing documentation, how vials are stored and shipped, and how ordering works. For laboratory research use only. Not for human or veterinary use.

Browse the catalog Build a 10 vial kit

Research-grade

What research-grade means here

Every compound in the catalog is manufactured to a minimum of 99% purity. Purity is a specification each lot must meet before release, not a marketing figure. Independent laboratories verify identity and purity for each lot, and batch records are retained so any vial can be traced back to its testing. Read more on the Quality and Testing page.

Reading a Certificate of Analysis

A Certificate of Analysis (CoA) is the lab report for one lot. Ours list the product name, the lot, the test date, the method used, and the measured purity. CoAs are shown in each product gallery and kept, newest first, on the CoA lookup page, which the QR code on every vial label points to. Earlier certificates stay on record.

Storage and handling

Compounds ship lyophilized (freeze-dried) in sealed vials. Store vials cold and away from light: refrigeration is acceptable short term, and freezing is recommended for long term storage. Each product page carries its own storage line, including the temperature range for a reconstituted vial. Reconstitution solvent is listed separately in the catalog.

Vial sizes, cases and kits

Most compounds are offered in several vial sizes (for example 10mg, 20mg and 30mg), with case pricing on selected sizes. The Build a Kit page assembles a half kit (5 vials) or a full kit (10 vials) from any compounds in the catalog at a per-vial discount. Kit pricing is the wholesale rate and is not combined with promo codes.

Ordering

How ordering works

  1. Browse. The catalog, prices, stock and CoAs are open to everyone.
  2. Confirm. At checkout, confirm you are 21 or older and buying for laboratory research use only. No account needed; existing accounts can still sign in.
  3. Pay. Card (Apple Pay, Google Pay, Klarna and Afterpay included), Zelle, Venmo or Cash App. Optional package insurance is $1 per $100 of merchandise.
  4. Ship. U.S. only, typically one to two business days after payment is confirmed, with tracking by email. See Shipping and Returns.

Need a compound, strength or kit count that is not listed? Signed-in researchers can file a special order request for a quote.

Catalog

Research compounds in stock

Single-vial prices. Every product page lists objective specifications, storage and testing documentation.

FAQ

Research peptide questions

What does research-grade mean on this site?

Every compound is manufactured to a minimum of 99% purity and each lot is tested by an independent laboratory for identity and purity before it is released. The Certificate of Analysis for each lot is published on the product page and on the CoA lookup page.

Are research peptides for human use?

No. Every product is intended solely for in vitro laboratory research by qualified researchers. Products are not foods, drugs, cosmetics or dietary supplements and must never be used for human or veterinary diagnosis, treatment or consumption.

How are research peptides shipped and stored?

Compounds ship lyophilized in sealed vials within the United States, typically one to two business days after payment is confirmed, with a tracking number by email. Store vials cold and away from light; refrigerate short term and freeze for long term storage. Each product page lists its own storage line.

Do I need an account to see prices?

No. The catalog, prices, stock and Certificates of Analysis are public, and you can order as a guest. At checkout you confirm you are 21 or older and buying for laboratory research use only.

How can I pay?

Card (including Apple Pay, Google Pay, Klarna and Afterpay through Stripe), Zelle, Venmo or Cash App. Payment details are shown after you place the order, and the order ships once payment is confirmed.

What is a peptide kit?

A half kit is five vials and a full kit is ten vials, mixed and matched from any catalog compounds, at a per-vial discount off the single-vial price. Kits are built on the Build a Kit page.

For laboratory research use only. Not for human or veterinary use. Questions? Contact us.