{"product_id":"research-peptide-pen-v4-bronze","title":"Research Peptide Pen V4 Bronze","description":"\u003cp data-start=\"0\" data-end=\"389\"\u003eUpgrade your research setup with the \u003cstrong data-start=\"37\" data-end=\"71\"\u003eBronze Reusable Peptide Pen V4\u003c\/strong\u003e—a refined evolution of the original V1 platform, now enhanced with a concealed-needle cap system and optimized cartridge utilization. Designed for researchers who prefer the extended V1 form factor but want improved efficiency and discretion, the V4 delivers precision, control, and less compound waste per cartridge.\u003c\/p\u003e\n\u003cp data-start=\"391\" data-end=\"689\"\u003e\u003cstrong data-start=\"391\" data-end=\"426\"\u003eV1 Form Factor, Upgraded Design\u003c\/strong\u003e\u003cbr data-start=\"426\" data-end=\"429\"\u003eThe V4 maintains the longer, balanced profile researchers appreciated in the V1, offering a stable grip and confident handling during administration. The overall body is slightly shorter than the original V1 for a more compact feel without sacrificing control.\u003c\/p\u003e\n\u003cp data-start=\"691\" data-end=\"898\"\u003e\u003cstrong data-start=\"691\" data-end=\"719\"\u003eNeedle-Hidden Cap System\u003c\/strong\u003e\u003cbr data-start=\"719\" data-end=\"722\"\u003eIncorporating the concealed cap design introduced in the V2, the V4 keeps the needle discreet during use and storage—ideal for cleaner bench setups and reduced visual exposure.\u003c\/p\u003e\n\u003cp data-start=\"900\" data-end=\"1181\"\u003e\u003cstrong data-start=\"900\" data-end=\"935\"\u003eOptimized 60 IU Delivery System\u003c\/strong\u003e\u003cbr data-start=\"935\" data-end=\"938\"\u003eUnlike the V1’s 80 IU capacity, the V4 is calibrated for up to ~60 IU. This shorter stroke length allows the internal plunger to travel further within the cartridge, reducing residual compound left behind and maximizing usable volume per fill.\u003c\/p\u003e\n\u003cp data-start=\"1183\" data-end=\"1333\"\u003e\u003cstrong data-start=\"1183\" data-end=\"1211\"\u003ePrecision Dosing Control\u003c\/strong\u003e\u003cbr data-start=\"1211\" data-end=\"1214\"\u003eA consistent dial and smooth delivery mechanism provide repeatable, accurate micro-dosing across research applications.\u003c\/p\u003e\n\u003cp data-start=\"1335\" data-end=\"1503\"\u003e\u003cstrong data-start=\"1335\" data-end=\"1376\"\u003eStandard 3 mL Cartridge Compatibility\u003c\/strong\u003e\u003cbr data-start=\"1376\" data-end=\"1379\"\u003eCompatible with universal peptide\/insulin-style cartridges up to ~60 IU, integrating seamlessly into existing lab workflows.\u003c\/p\u003e\n\u003cp data-start=\"1505\" data-end=\"1676\"\u003e\u003cstrong data-start=\"1505\" data-end=\"1542\"\u003eDurable Bronze Metal Construction\u003c\/strong\u003e\u003cbr data-start=\"1542\" data-end=\"1545\"\u003eFinished in clean Bronze metal, the V4 balances lightweight portability with long-term durability and a professional lab aesthetic.\u003c\/p\u003e\n\u003cp data-start=\"1678\" data-end=\"1729\"\u003e\u003cstrong data-start=\"1678\" data-end=\"1698\"\u003ePackage Includes\u003c\/strong\u003e\u003cbr data-start=\"1698\" data-end=\"1701\"\u003e(1) V4 reusable Bronze pen\u003c\/p\u003e\n\u003cp data-start=\"1731\" data-end=\"1798\"\u003eCheck our other listings for additional cartridges and accessories.\u003c\/p\u003e\n\u003cp data-start=\"1800\" data-end=\"1859\" data-is-last-node=\"\" data-is-only-node=\"\"\u003e⚠️ For Research Use Only – Not for human or veterinary use.\u003c\/p\u003e","brand":"My Store","offers":[{"title":"Bronze","offer_id":44905920397494,"sku":"PC-PEN-V4-BRNZ","price":29.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0702\/3119\/5830\/files\/Gemini_Generated_Image_q41l9wq41l9wq41l_1.png?v=1770923520","url":"https:\/\/peptidecritic.myshopify.com\/products\/research-peptide-pen-v4-bronze","provider":"Peptide Critic Store","version":"1.0","type":"link"}