Chemical Quality

Research Grade Peptides

Purity options that deliver results. Research peptides of the highest standard for laboratory test trials.

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“Great company… customer service was amazing and the product was delivered within 2 days… couldn’t be happier!!”

★★★★★

“I genuinely appreciate how transparent and reliable this peptide company is- any issue I’ve encountered has been quickly resolved by their customer support. Shipping/processing time is fast and their packaging is discrete and professional as well…”

Purity Standards

Innovation Meets Purity

Satisfaction Guaranteed

Pure, verified laboratory testing

Fast Dispatch

Global shipping & delivery

Quality Tested

HPLC & MS verified reports

Customer Service

Live chat & premium support

USA Owned Company

High-quality local standards

Curated Selection

Featured Products

Explore our featured laboratory research peptides, synthesized to the highest standards of purity and verified by independent third-party analysis.

Purity Verification

Transparency You Can Trust

We publish third-party HPLC and Mass Spectrometry testing reports for every single batch of peptides we synthesize. No secrets, no compromises.

Semaglutide 5mg

Batch: 11102025SM
Purity: 99.174%
Date: 22 JAN 2026
Lab: Janoshik Laboratories
Key: J73AXCNRGLW5
Status: Verified

Semaglutide 10mg

Batch: 1052026SM
Purity: 99.524%
Date: 16 FEB 2026
Lab: Janoshik Laboratories
Key: N9MVUV24BVJA
Status: Verified

Semaglutide 15mg

Batch: 11092025SM
Purity: 99.791%
Date: 22 JAN 2026
Lab: Janoshik Laboratories
Key: M55FRN4QFTU8
Status: Verified
View All Test Reports
Advanced Synthesis

Next-Generation Research Peptides

Sourced and synthesized to the highest industry purity standards. Fully tested for chemical profile, consistency, and structural identity.

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Next-Gen Research Sema & Reta
Bundle & Save

Bundle & Save

Discount on Bulk Orders

Save up to 30% when ordering in bulk quantities.

Free Peptide Case

Get a free protective case for safe laboratory storage.

Free Shipping

Free express shipping on all orders over $150.

Prime Peptides Black Box
Premium Products

Our Signature Collections

Most Popular

Tissue Repair & Regeneration Research

BPC-157 / TB-500 $49.00 Shop Now
Tissue Repair Peptide Vial

Metabolic Function Research

GLP-1 $59.00 Shop Now
Metabolic Research Vial

Cellular Energy Pathway Studies

NAD+ $39.00 Shop Now
Cellular Energy Peptide Vial

Skeletal Muscle & Recovery Research

MK-677 $45.00 Shop Now
Skeletal Muscle Peptides
FAQ

Still need help?

If you have any questions, our support team is here to help. Select a topic below to find answers to frequently asked questions.

Peptides are short chains of amino acids that act as building blocks of proteins.
Our peptides are lyophilized (freeze dried) for shelf stability during shipping and handling, to ensure they arrive to you with maximally potent. They require bacteriostatic water for research use. Please view our FAQs on reconstitution for resources on mixing.
Please read our article on the Sourcing page.
All of our products undergo rigorous third-party mass spectrometry testing with Janoshik Analytical.
We ship daily Monday through Saturday. All orders placed before 1pm ship the same-day. All orders ship with Fedex 2-day air. Please note we cannot ship to PO boxes, only commercial and residential addresses. Please reach out to customer service with any issues related to shipping delays or mis-deliveries.
When your order ships, you will receive an automatic email with a link to track your order with Fedex.
We are only shipping within the US at the moment. Please note we cannot ship to PO boxes, only commercial and residential addresses.
We are happy to accept returns of unopened vials within a month of purchase. To initiate a return request or refund request, log in to your account using the same email address used at checkout. Navigate to the My Account page, select the Orders tab, and click Return Request next to the relevant order. Complete the return request form, and our team will respond within 1–2 business days. We will issue a full refund when we receive the return package and can restock the inventory.
We are always happy to make things right in this situation, please submit the Exchange Request Form and we will send a replacement in 1-2 business days.
Our office is located in Southern California.
Please use the BAC Water Calculator to determine how much Bacteriostatic water to add to your peptide.
Check out our guide on reconstitution. Calculate reconstitution with the Peptide Calculator.
Please refer to this article we created to find out how long your peptides will last and how to store them.
Please refer to this article we created to find out how long your peptides will last and how to store them.
We provide peptides for research purposes only and we don’t give out any medical advice. Please conduct independent research or speak to a licensed medical professional.
You can view all of our current active COAs on our COA page as well as at the bottom of the product page for the peptide.
Please go to https://janoshik.com/verify/ and enter the task number and unique key found on your COA. Please note that this is a different code than the batch numbers we use internally to track batches.
Top Choice

Best Selling Products

Our most requested research compounds, preferred by leading laboratories for consistency, purity, and exceptional results.