Shipped cold. Verified pure.
Research-grade peptides, batch-tested and verified. Access premium compounds at competitive prices with full certificates of analysis.
For laboratory research use only

k+
Research orders shipped from our US facility since launch
%
Avg. verified purity
+
Compounds in catalog
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Order → shipped
Our manifesto
The research peptide industry has a transparency problem.
Most suppliers
“Trust us, it's 99% pure.”
- No third-party testing
- No batch-level documentation
- Unknown synthesis origin
- No cold-chain handling
The new standard
Here's the COA. Verify it yourself.
- Independent HPLC + LC-MS testing, every batch
- Public certificate of analysis per vial
- Full US domestic supply chain
- Insulated, temperature-controlled shipping
Why Synex Labs
Built for the lab, not the shelf.
Six expectations every research material supplier should meet. Here are ours.
Independent third-party testing
Every batch undergoes HPLC + LC-MS verification through accredited laboratories. No in-house shortcuts.
Batch-level certificates of analysis
Each vial ships with a unique batch ID and publicly accessible certificate of analysis.
99%+ minimum purity standard
Lyophilized peptides manufactured under controlled conditions. Cold-chain from synthesis to your door.
Next-day shipping, fully tracked
Orders placed before 2 PM CT ship same day. Express ground shipping with full tracking visibility.
100% domestic supply chain
Every compound is sourced, tested, and shipped entirely within the United States.
38+ compounds in catalog
A growing catalog spanning GLP-1 analogs, neuropeptides, metabolic cofactors, and more.
How it works
Your first order, in three steps.
Browse the catalog
Explore 38+ compounds with specifications and certificates of analysis for every batch.
Add to cart
Pick your compounds and pack sizes. Bundle pricing is applied automatically when available.
Place your order
Checkout with encrypted, PCI-compliant payment processing. Ships next business day.