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So you're looking at the 3ml retatrutide pen, model HL007, and honestly, that's what most buyers start asking about when they welcome to contact us for bulk orders — we usually have stock on the adjustable dosing range from 0.01ml right up to 0.6ml, which gives you pretty fine control for research (usually 2-4 weeks for a full container lead time, but smaller quantities ship faster).
It's basically designed for research application only, not personal use, and we've had labs use these for dosing studies where the visual and auditory feedback really matters — the injection time is under 6 seconds, and the needle size can be 31G or 32G depending on what you're injecting, though we usually recommend 32G for smaller volumes because it's less tissue trauma.
The pen diameter is 17mm, medical-grade plastic throughout, and teh cartridge compatiblity is φ9.7mm inner diameter — that's a tighter tolerance than most generic pens, which matters if you're working with viscous formulations, but honestly we don't always have the exact needle specs on hand for every batch, so check lead time if you need a specific gauge.
Anyway, most buyers go with the 3ml capacty because of that it balances volume and handling well, though if you're running high-throughput work, the 0.6ml max dose means fewer refills per injection session — just be aware it's not suited for anything below 0.01ml per click, so micro-dosing below that range would require a different system.
For bulk orders, we customize packging and can do your own branding on the barrel if you're ordering 1,000 units or so, and the China Class II Medical Device certifcation means it's already passed CDE packaging records — we usually have COAs from the factory, but confirm lead time for any custom runs.
