premium quality
Research Grade Peptides
Third-party tested. Full documentation. Fast priority shipping from our USA based facility.
Shop NowI absolutely love this company. Real legitimate products, easy to access calculator guides, and fast shipping…
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…
premium quality
Innovation Meets Purity
Satisfaction Guaranteed
30-day return policy
Fast Shipping
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Quality Tested
Quality Tested
Customer Service
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USA Based Company
Offices in California
Prime Selections
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Retatrutide
$120.00
Semaglutide
$90.00
GLP-2
$115.00
Tesamorelin
Original price was: $70.00.$60.00Current price is: $60.00.
BPC-157
$60.00
MOTS-c
$55.00
Certificates of analysis
Transparency You Can Trust
All products are supported by third-party laboratory testing and documented Certificates of Analysis. These reports confirm compound identity and purity, giving you direct access to the same data we use for internal quality verification.
Semaglutide 5mg
Semaglutide 10mg
Semaglutide 15mg
BPC-157 10mg
BPC-157 10mg
Ipamorelin 10mg
premium quality
Next-Generation Research Peptides
Experience a breakthrough in research with our advanced peptide formulations. Crafted for scientists who demand the extraordinary.
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Free Peptide Case
over 8 peptides
Free Shipping
over $150
FAQ
Still need help?
Can't find what you're looking for? We've got you covered. Reach out to our team and we'll get back to you with everything you need to know.
What are peptides?
Peptides are short chains of amino acids that act as building blocks of proteins.
How much bacteriostatic water should I use to reconstitute?
How do I reconstitute my peptides?
Check out our reconstitution guide, or use the Peptide Calculator to get exact draw amounts for your syringe.
How long do peptides last?
Lyophilized peptides are stable for months when frozen. Once reconstituted, refrigerate and use within the timeframe noted on your COA.
How should I store my peptides?
Store lyophilized vials in a freezer for long-term stability. After reconstitution, keep refrigerated and protected from light.
What dose should I take?
We provide peptides for research purposes only and do not give out any medical advice. Please conduct independent research or speak to a licensed medical professional.
Why is there no liquid in my vial of peptides?
Our peptides are lyophilized (freeze dried) for shelf stability during shipping and handling, to ensure they arrive at maximum potency. They require bacteriostatic water for research use.
Where do you source your peptides from?
All of our peptides are sourced from vetted, quality-controlled synthesis partners with documented manufacturing standards.
How soon will my order ship?
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.
How can I track my order?
When your order ships, you will receive an automatic email with a link to track your order with FedEx.
Do you ship internationally?
We are only shipping within the US at the moment. Please note we cannot ship to PO boxes, only commercial and residential addresses.
Do you offer free shipping?
Yes — free shipping is included on all orders over $150.
How is my order packaged?
All orders are shipped in discreet, unmarked packaging with vials individually cushioned to prevent breakage during transit.
How is purity verified at Prime Peptides?
All of our products undergo rigorous third-party mass spectrometry testing with Janoshik Analytical.
Where can I find the COA for my batch?
You can view all of our current active COAs on our Testing page as well as at the bottom of the product page for the peptide.
How do I verify my COA with Janoshik?
What purity level are your peptides?
All Prime Peptides research compounds are manufactured to ≥99% purity and independently verified before listing.
Where are you located?
Our office is located in Southern California.
What is your return policy?
We are happy to accept returns of unopened vials within a month of purchase. To initiate a return request, log in to your account using the same email address used at checkout, navigate to My Account → Orders, and click Return Request next to the relevant order. Our team will respond within 1–2 business days. We will issue a full refund once we receive the return package and can restock the inventory.
What should I do if my purchase arrives damaged or defective?
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.
How can I contact customer service?
Our team is available by chat, phone, and email. Use the Contact page and we will respond within one business day.
Blog
Peptide Resources
How Much Bacteriostatic Water to Add to Peptides?
As peptides continue to grow in popularity each year, one of the most common questions people ask is: How much bacteriostatic water...
Read More7 Steps to Reconstitute Peptides
A guide on peptides, their benefits, and step-by-step directions for reconstituting lyophilized (freeze-dried) peptides and instructions...
Read MorePeptide Calculator
Use our Peptide Reconstitution Calculator below. Simply select your parameters to accurately calculate dosages...
Read More