3ml Glass Cartridges
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• Major cities (JHB, CPT, DBN): R195 overnight
• Outlying areas: R275 (2-3 business days)
• Collect in person: Free (Sandton location)
These 3ml Glass Cartridges are sterile, pharmaceutical-grade containers engineered for precise, multi-dose administration of liquid formulations. Designed for compatibility with standard insulin pen delivery systems, they offer researchers a reliable method for pre-filling and storing multi-peptide blends. Their robust construction ensures formulation stability for extended research protocols.
- •**Pharmaceutical Grade:** Constructed from Type I glass suitable for sensitive peptide storage.
- •**Sterile and Sealed:** Individually gamma-sterilized to maintain formulation integrity.
- •**Standardized Compatibility:** Integrates seamlessly with widely used pen injector devices.
- •**Optimized Capacity:** 3ml volume supports multi-day or multi-week dosing protocols (up to 60 IU).
- •**Enhanced Precision:** Facilitates accurate, metered daily administration of experimental compounds.
- •**Pre-Fill Efficiency:** Allows for efficient preparation of custom peptide cocktails for streamlined research workflow.
The cartridge functions as a controlled reservoir for liquid active pharmaceutical ingredients (APIs), utilizing a movable rubber stopper and an aluminum crimp seal. When inserted into a compatible pen delivery system, the system's internal mechanism engages the stopper. Each dose increment selected by the user physically displaces a precise volume of liquid formulation (typically $0.05\text{ ml}$ increments), pushing it through the pen needle for subcutaneous or intramuscular injection. The Type I borosilicate glass minimizes leaching and adsorption, ensuring the chemical integrity and concentration of the stored peptide or small molecule formulation remains stable throughout the dispensing period.
These cartridges are primarily utilized in preclinical and clinical research settings requiring controlled, sustained administration of therapeutic peptides, hormones, or novel small molecules. They are essential for longitudinal studies where consistent daily dosing is critical for establishing pharmacokinetic and pharmacodynamic profiles. Specific applications include metabolic research (e.g., GLP-1 analogs), endocrinology studies (e.g., growth factors), and toxicology screening where precise, low-volume dosing over extended periods is necessary to mimic chronic physiological conditions. Their sterile nature also makes them suitable for compounding custom blends where aseptic technique is paramount.
3ml Glass Cartridges
This item
R15.00
Reusable Peptide Pen
Premium reusable peptide pen with dial-a-dose mechanism. Compatible with 3ml glass cartridges. Available in 12 colours. Includes carry case.
Out of stock
R340.00
Total for 1 item:
R15.00
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Reusable Peptide Pen with Case
Premium reusable peptide pen with protective case
Insulin Syringes (1ml, 31G)
Ultra-fine 31G insulin syringes for precise peptide dosing. Dual IU/ml graduation, low dead-space design, and individually sterile-packaged.
3ml Glass Cartridge Filler Jig
Precision-engineered jig for filling 3ml glass cartridges cleanly and accurately. Holds the cartridge securely while you fill — no spills, no waste.
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Compatibility Note
All Protopep accessories are selected for compatibility with our reusable peptide pens and standard 3ml glass cartridges. If you have any questions about compatibility with your specific setup, please contact us at [email protected].