- 【Compatible with V1 & V2 Pen Systems】 – These 3ml pen cartridges are specifically engineered for use with V1 and V2 peptide pen injectors. Each 3cc cartridge provides a secure, leak-free fit and consistent performance, making them a reliable choice for daily peptide pen refills.
- 【High-Quality Medical-Grade Glass Construction】 – Crafted from premium borosilicate glass, these peptide pen cartridges offer excellent chemical resistance and durability. The non-reactive material helps preserve the purity and integrity of your contents, minimizing the risk of contamination or leakage.
- 【Individually Sterilized & Sealed for Safety】 – Each peptide pen cartridge is individually sterilized and wrapped in protective packaging, ensuring it remains clean and contamination-free until the moment of use. This attention to hygiene provides added peace of mind with every peptide pen refill.
- 【Precision 11mm Long Stopper Design】 – Featuring a high-resilience 11mm (0.43-inch) rubber stopper, each cartridge is designed to deliver accurate and consistent measurement. The extended stopper enhances sealing performance and smooth plunger movement, supporting reliable dosing with every injection.
- 【Convenient 50-Pack for Easy Storage & Portability】 – The 50-pack option offers an ideal supply for regular users. These peptide pen cartridges are lightweight and compact, allowing for hassle-free storage and easy portability whether at home or on the go.



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