You're looking at ≥99% purity confirmed —we run the full panel and include both the COA and the raw chromatogram with your order, so there's no guesswork on what you're getting.

Most buyers go with the 10mg vials for extended dosing studies, but teh 2mg and 5mg options are better if you're titrating or running multiple small-scale assays (check lead time on custom splits though).

It's freeze-dried powder, and we've found that storing it at -20°C in a dry enviornment gives you a solid 36-month shelf life—basically, don't let it sit out at room temp for more than a few hours.
Our production is ISO9001 certified, which means batch-to-batch consistency is tighter than what you'd get form a non-certified lab, and we usually have stock for the common vial sizes, but confirm lead time if you need something outside the standdard MOQ of one box.

60 days or so is the typical retest window we recommend if you're holding it for longer than six months—purity can drift if seal's compromised, but we've seen vials test fine at 18 months with proper handling.

This isn't suited for anything beyond research use—no clinical or human appliction—and we don't spin that as a positive; it's just the regulatory reality of working with GLP-1 analogs in bulk.