We’ve been shipping these borosilicate glass 3.3 vials to US and EU labs for years now, and teh clear glass makes visual inspection of your retatrutide samples straightforward—no guesswork on precipitate or discoloration.
Basically, they’re designed for pharmaceutical research and biotech storage, but we’ve also had buyers use them for long-term sample archiving; just don’t expect them to hold up under extreme thermal shock without pre-warming.

Sizes range from 3ml to 10ml, and flat neck comes in 16mm or 22mm—most US buyers go with the 22mm for easier syringe access, but check your capping equipement first.

Each vial ships with aluminun cap and PTFE/silicone septum, and we include COA and HPLC data per batch (usually 2-4 weeks lead time form order to dock in the UK).

MOQ sits at 20,000 pieces, packed as 100 per inner box and 10 boxes per carton, which keeps shippng costs down for consolidated orders.
And we handle all import documentation for US and EU customs—just provide your tax ID and we’ll send the TDS and SDS alongside the shipment.