Everything you need for confident research — certificates of analysis, our free guide, and answers to common questions. Research use only.
Research guides are being written for Zeus Aminos. New guides appear here as they are published.
Third-party HPLC purity results for every batch — check your compound's lab report.
Explore our full range of high-purity research compounds, GLPs and lab supplies.
CAS number, molecular formula, sequence and physical form for every compound we supply.
In-depth, research-only guides to the compounds we supply — chemistry, what the literature reports, and correct laboratory handling.
Handling, verification and comparison guides that apply across the catalog — the steps between a sealed vial and a result you can trust.
Yes. Every product sold by Zeus Aminos is intended strictly for in-vitro laboratory and analytical research only. Products are not for human or animal consumption. You must be 21 or older to purchase.
Our research peptides are tested to 99% purity by HPLC. Every batch is independently analyzed by a third-party laboratory, and a Certificate of Analysis (COA) is available for each lot.
A COA is a third-party lab report documenting compound identity (mass spectrometry), purity by HPLC, batch/lot number and date of analysis. COAs are published on our Analysis page. To request the COA for a specific lot, provide the lot number printed on the vial label via our contact page.
Lyophilized (freeze-dried) peptides should be stored at -20°C, away from light and moisture. Once reconstituted, keep them refrigerated at 2-8°C and use within the timeframe appropriate for the compound. Always follow standard laboratory handling practices.
Lyophilized peptides are typically reconstituted in a sterile, non-pyrogenic diluent such as bacteriostatic water or a compatible reconstitution solution. Add the diluent slowly against the vial wall and swirl gently — do not shake — until fully dissolved. We offer a laboratory-grade reconstitution solution in our shop.
We ship from the USA. Orders placed before 12:00 PM ET, Monday to Saturday, are typically dispatched the same business day via FedEx or UPS (PO Boxes via USPS), in discreet, tracked and insured packaging.
We accept secure, encrypted card checkout. All transactions are processed over an encrypted connection. Use code WELCOME10 to save 10% on your first order.
Our Research Center publishes free guides covering reconstitution, bacteriostatic versus sterile water, storage and how to read a certificate of analysis. They are web pages, free to read, with no download or sign-up required.