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Not every lab needs pre-filled syringes, and honestly, for some research appliction the added cost isn't justified—but when you're running high-throughput screening or need consistent dosing across a study, these save a lot of headache.
We've seen most buyers go with the 2.25ml size for retatrutide work, though the 1ml option is easier to handle if you're using our autoinjectors (the neck finish matches exactly, so no adapter hassle). borosilicate glass holds up better than soda-lime for long-term storage, we've had no issues with leachables at 4°C over 30 days or so.
The sealing system uses a 1073b HDPE paper with waterborne coating, which basically means it's got better moisture barrier than the standard 1059b films—critical if you're storing reconstituted peptides for more than a week. Rubber plunger formulation is theirs, not ours, so we can't speak to exact cure cycles, but COAs show consistent glide force across batches.
100 or 160 nest boards are standerd depending on teh volume you order, overhead pocket is 1059b+10s if that matters for your sterile transfer workflow. We usually have stock on both the 1ml and 2.25ml, but confirm lead time for the clear press cap version—sometimes it runs 2-3 weeks behind the colored caps.
One thing that caught us off guard early on: the paper cover is 1073b HDPE, not the thicker 1059b you might expect for pharmaceutical primary packging. It's fine for research use, but if you're planning terminal sterilization cycles above 121°C, you'll need to specify a different overlay.
Our standard MOQ is 10,000 units for customized orders. Lead time is typically 25-30 working days after sample approval, depending on the customization complexity.
Yes, we supply a Certificate of Analysis for each batch, including glass quality and seal integrity tests. Just request it with your order.
The 1ml syringes hold 1ml of fluid, ideal for smaller doses, while the 2.25ml syringes hold 2.25ml for larger volumes. Both use the same borosilicate glass and press cap closure.
Absolutely. We can print your logo or text on the 1073b HDPE paper cover and waterborne coated sealing paper. Just share your artwork files and we'll handle the rest.
Store them in a cool, dry place away from direct sunlight. The shelf life is 2 years when sealed properly in the PP nest board and paper cover packaging.
