Frequently Asked Questions.
Are Eclipse Peptides products for human use?+
No. All products are supplied strictly for laboratory in-vitro research and are not for human or animal consumption.
What purity level are your peptides?+
≥99% purity, verified by HPLC and mass spectrometry, with a batch-specific Certificate of Analysis on every shipment.
Do you provide a Certificate of Analysis?+
Yes. A batch-specific COA ships with every order. Historical COAs can be requested from our Contact page.
How should compounds be stored?+
Lyophilized powder should be stored at 2–8°C. Consult the product's COA for reconstitution and long-term storage guidance.
How do I order?+
Browse the Research Catalog, add compounds to your cart, and complete checkout. You must be at least 21 years old and a qualified researcher.
How is my order shipped?+
Orders ship domestically with cold-chain-appropriate packaging. See our Shipping Policy for cutoffs, transit times, and tracking.
Can I return or cancel an order?+
No. All sales are final. Due to the nature of research compounds, Eclipse Peptides does not accept returns, exchanges, cancellations, or refunds once an order has been placed. If an order arrives damaged, incorrect, missing an item, or with a compromised seal, you may contact us for an Order Issue Review — see our All Sales Final & Order Issues policy.
Do you ship internationally?+
Refer to our Shipping Policy for the current list of countries we serve.