So you're working with retatrutide in the lab and need something that won't compromise your dosing precision—these safety syringes handle that, basically. The Light100V4 holds 1ml, teh Light225V4 holds 2.25ml, both with a fixed dose and press cap closure that's pretty much foolproof for repeated injections.


We've got them in borosilicate glass, which is better than reagent grade for this since it won't leach ions into your peptide solution during storage—something those cheap plastic barrels can do after a few freeze-thaw cycles. Custom labeling is acceptable, and we usually have stock, but confirm lead time (roughly 20 days or so).

What you get when ordering is a full COA with HPLC purity data—typically 99%+, tighter tolerance than most generic syringes for this appliction. The passive safety mechanism engages automatically, so you don't need to train anyone on a separate activation step, and that matters when you're handling multiple samples in a run.

One thing to know: these aren't suited for viscous oils or suspensions above 50 cP or so—the fixed needle diameter (unlimited, yes, but you'll want a 23G or larger for thick formulations) can clog if you push heavy solvents. Most buyers go with the 1ml model for retatrutide to minimize dead volume, which actually saves you material over time.


Anyway, storage is straightforward—room temp in the box, but we recommend keeping them away from direct UV exposure if you're pre-filling for later use. The CAS for glass itself isn't relevant here, but the silicone-free plunger design (check the spec sheet) reduces protein adsorption, and that's a detail most suppilers don't flag unless asked.
We don't have a fixed MOQ — it really depends on the model and customization. For standard Light100V4 or Light225V4 syringes, we can start from small trial orders, but wholesale pricing kicks in at higher volumes. Just let us know your quantity and we'll quote accordingly.
Lead time is typically 15-25 working days, depending on the complexity of the printed label and color customization. We'll confirm the exact timeline once you share your artwork and specs.
Yes, we can supply a Certificate of Analysis, material test reports, and other relevant quality docs. Since these are for research use, we recommend specifying which certifications you need upfront.
The main difference is capacity: Light100V4 holds 1ml, while Light225V4 holds 2.25ml. Both are glass, press-cap, fixed-dose syringes. Choose based on your injection volume requirements.
Absolutely — samples are available. We can send you a few units with your preferred color and labeling for evaluation. Just cover the shipping cost, and we'll take care of the rest.