Frequently asked

Every lot is supported with third-party testing information, including purity analysis by HPLC and identity confirmation by LC-MS. The documentation is filed under the lot number printed on the vial, and you can look it up before you order.

Find the lot number on the vial label, enter it in the certificate lookup, and compare the compound name, lot number and analysis date on the certificate with the vial in your hand.

Orders ship in plain, unmarked packaging on a tracked service within the United States, dispatched the next business day after payment clears.

Lyophilized compounds are generally kept frozen before reconstitution and refrigerated once in solution. The storage guide in the Research Library covers the details.

Every compound is supplied strictly for in-vitro laboratory research. They are not for human or veterinary use, and nothing on this site is a medical claim.

The peptides are supplied lyophilized (freeze-dried) for stability, so they are reconstituted with bacteriostatic water in a laboratory setting for in-vitro research. Our free reconstitution calculator works out the concentration and syringe draw for any vial size, and bacteriostatic water is stocked in our reconstitution supplies.

They ship lyophilized (freeze-dried), which is stable in transit and tolerates brief time at room temperature. Keep the sealed vial refrigerated for short-term storage or frozen near minus 20 C for longer, and once reconstituted keep the vial refrigerated and use it within its stability window. Our storage guide covers shelf life before and after reconstitution in detail.

Every order is covered by our delivery guarantee: if it is lost, held, damaged, or arrives wrong, we reship it or refund you, no dispute needed. You get a tracking number by email at dispatch, and support replies within one business day.

Because we ship domestically, packages do not clear customs. If a package is held or seized, it is covered by the delivery guarantee and we reship or refund. We ship in plain, unmarked packaging from within the US.

Nothing that names a product. Card payments are processed and appear under a neutral trading name.

Every batch is HPLC and mass-spec tested and ships with its certificate of analysis. Independent third-party HPLC/MS verification of any lot is available on request, and our independent-test guarantee refunds your order if a vial does not match its certificate.

Yes. Each product page shows the lot currently shipping with a link to its certificate, and you can look up any batch number on the Verify COA page.