Each lot is analysed by an independent laboratory using HPLC and mass spectrometry to confirm identity and purity to a documented >99% standard. Results are published as a lot-specific Certificate of Analysis that you can download by batch number before or after purchase.

In-stock orders placed before 11:00 AM PST dispatch the same business day; all other in-stock orders leave within 24 hours. Free shipping applies to US orders over $250. Tracking is emailed at dispatch, and packaging is plain and discreet.

Lyophilized peptides are shipped in temperature-stable packaging and should be stored at minus 20 degrees Celsius for long-term stability. Once reconstituted, keep refrigerated and use within the window noted on the product page for best research consistency.

If an independent assay shows a lot below our stated >99% purity, contact us for a full refund or replacement. Unopened, undamaged vials may be returned within 14 days. Opened vials cannot be returned for safety and integrity reasons.

You can check out as a guest, but a free research account unlocks batch COA history, restock alerts, and volume pricing for qualified labs. Account holders also get faster reordering of previously purchased lots.