Labor Day
Research Sale
RetZama, TirZama, SemZama, BPC-157, Cagrilintide — and the rest of the catalog.
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Shop the SaleSale ends Tuesday, September 8 at 11:59pm PT
12k+ research orders shipped
Research Peptides With Verified Purity.
>99% Purityβ’CoA With Every Orderβ’HPLC Verified
Every claim has a number behind it.
Every claim has a number behind it.
Every claim has a number behind it.
Best sellers
Research PeptidesResearchers Trust
Four tests stand between synthesis and sale.
A purity figure on its own doesnβt tell you a compound is clean. Every Zama batch is screened by an accredited third-party laboratory across four independent tests, and no batch is listed until all four clear.
High-performance liquid chromatography measures how much of the vial is the target compound versus anything else. The exact figure is printed on the certificate, not rounded up.
Mass spec confirms the molecular weight matches the intended sequence β verifying the vial holds the compound on the label, not a close substitute.
The Limulus amebocyte lysate assay screens for bacterial endotoxins. They survive sterilization and donβt register on a purity test, so theyβre measured on their own.
Each batch is checked for microbial contamination against recognized standards β confirmed clean by testing, never assumed clean because a purity result passed.
Every result is recorded on a batch-specific Certificate of Analysis, verified by an accredited third-party laboratory and included with your order. No batch reaches the catalog until all four tests clear.
Find your compound.
Browse the catalog by the pathway you are studying.
Built for the lab not the shelf
Scientific Purity Standards
Every batch is independently validated to exceed 99% purity. We use HPLC, mass spectrometry, and endotoxin testing β not just one method, but the full triad clinical labs use.
99.3 %+
Avg Purity Across Catalog
Transparent Lab Verification
Every order ships with batch-specific Certificates of Analysis. No black-box claims, no marketing fluff β full chromatograms, retention times.
100 %
Batches With Public CoA
Fast, Reliable Delivery
US-based dispatch with FedEx Express on every order. Temperature-controlled, vacuum-sealed, completely discreet packaging. Tracked end-to-end with on-time guarantee.
24 h
response time
FAQ
Frequently Asked Questions
How quickly will I receive a response?
We typically respond to all email inquiries within 24 hours on business days (Monday-Friday, 9am-6pm EST). For urgent order issues, please include your order number in the subject line for priority handling.
How can I track my order?
Once your order ships, you’ll receive a confirmation email with tracking information. You can also check your order status by emailing info@zamabio.com with your order number. Orders placed before 2:00 PM CT are shipped the same business day. Orders placed after 2:00 PM CT or on weekends and holidays will ship the next business day. Most orders arrive within 3β5 business days after shipment. Every order includes free shipment protection.
I received the wrong item or my order is damaged. What should I do?
We’re sorry to hear that! Please email info@zamabio.com immediately with your order number and photos of the damage. Photo evidence is required for all claims. Once verified, we’ll send a one-time replacement within 24 hours at no cost. One replacement per customer per order, subject to review.
How can I verify the quality of my order?
Every order includes a batch-specific Certificate of Analysis (CoA) verifying purity, identity, and quality. You can also access CoAs on each product page. If you have questions about a specific CoA or need additional documentation, our support team is happy to help at info@zamabio.com.
Can you recommend products for my research?
While we cannot provide medical or therapeutic advice, our team can help you understand the specifications, purity levels, and research applications of our peptides. Email us with details about your research focus, and we’ll point you toward relevant product information and published studies.
How do I get a Certificate of Analysis (CoA) for my order?
Every order includes access to batch-specific Certificates of Analysis. CoAs are available on each product page and are also included in your order confirmation email. If you need a specific CoA or have questions about lab results, email us with your order number and we’ll send it right over.
My payment was declined. What should I do?
Payment declines can occur for several reasons. First, ensure your billing address matches your card exactly. If issues persist, try a different payment method or contact your bank to authorize the transaction. You can also email us and we’ll help troubleshoot or provide alternative payment options.
Precision Purity Delivered
Browse our full catalog of research-grade peptides – every batch documented, every COA published. No commitments. No minimums.