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It’s a glass prefilled syringe with a fixed injection dose, availble in either 1ml or 2.25ml capacity, and the closure is a press cap — our company can also customize the color and add a printed label if you need branding or batch tracking on the barrel.
We run HPLC for purity and content uniformity, and the COA will show you residual solvent levels are typically under 50 ppm, which matters for sensitive biological assays or when you’re dosing compounds like retatrutide in a clinical setting.
Most buyers in pharmaceutical development or veterinary medicine go with the 2.25ml version because of that it gives them more flexibility for larger volumes, but the 1ml is easier to handle for fixed-dose subcutaneous injections.
Actually, what it does is eliminate the need to draw from a vial, so you get consistent dilevery every time, and the glass material means you won’t have leachables like you might with some plastic syringes.
We usually have stock on the plain glass units, but custom colors or labels add about 20 days or so to lead time, and the MOQ is 5,000 pieces for any customiztion — just confirm the retest policy when you place the order since our company offer a 12-month shelf life from manufacutre.
It’s not suited for multi-dose vials or high-viscosity oils above 200 cP, but for most aqueous formulations or peptides, it’s better than reagent-grade syringes for consistency.
