Peptide pen kit
A complete peptide pen kit for the research bench includes the reusable pen device, 3 ml glass cartridges for holding reconstituted peptide, bacteriostatic water for reconstitution, and a protective carry case for transport and storage. PreppinPeppers assembles these components into functional kits that enable researchers to handle peptide working solutions with precision and contamination control.
The Pen: Precision Dosing Hardware
The Gansulin reusable pen delivers precision click-dial functionality for accurate peptide aliquoting. Metal construction provides durability for repeated use, and the dose-setting mechanism allows researchers to dispense consistent volumes without manual pipetting. This is particularly useful when running multiple experiments requiring the same peptide dose across different days or when minimizing freeze-thaw cycles by pre-loading cartridges with working solutions.
3 ml Glass Cartridges: The Reconstitution Vessel
The 3 ml glass cartridges thread directly into the pen body and serve as the primary container for reconstituted peptide solutions. Glass construction is chemically inert and won't interact with peptide sequences, and the volume capacity accommodates typical reconstitution volumes for research-scale lyophilized peptide batches. The sealed cartridge design reduces exposure to ambient contamination during storage and dosing.
Bacteriostatic Water: The Reconstitution Medium
Bacteriostatic water is the standard reconstitution solvent for research peptides, containing 0.9% benzyl alcohol to inhibit microbial growth in the reconstituted solution. Each 30 ml vial provides sufficient volume for multiple reconstitutions, and the preservative ensures that once a peptide is reconstituted, the solution remains usable across multiple withdrawals over the study period. Researchers should note that bacteriostatic water is for laboratory solution preparation only.
Carry Case: Protection and Organization
A dedicated carry case protects the assembled pen and cartridge from physical damage during transport between lab spaces or to collaborator sites. The reusable case designed for 3 ml cartridge pens keeps components together and prevents the cartridge from loosening during movement. This is especially valuable when maintaining a sterile field or when the same pen setup is used across multiple workstations.
PreppinPeppers Assembly
PreppinPeppers offers these components as individual items or as a coordinated kit. The advantage of ordering together is ensuring component compatibility—all items are confirmed to work with the 3 ml cartridge format and the Gansulin pen threading. Researchers can mix and match quantities based on their study requirements, whether running a single project or maintaining ongoing peptide work requiring multiple cartridges.
For a complete peptide pen kit, we recommend the Gansulin reusable pen, paired with 3 ml glass cartridges for reconstitution, bacteriostatic water for peptide solubilization, and a carry case for protection and organization. This four-component setup provides everything needed for accurate peptide handling in laboratory workflows.
From The Lab
Common questions
What is in a pen kit?
A reusable metal pen, standard 3 ml glass cartridges, bacteriostatic water as the diluent, and a carry case. Those are the parts a reconstitution setup needs at the bench, which is why they ship together.
Why buy a kit instead of the parts separately?
A pen on its own cannot be used: it needs a cartridge to clamp and a diluent to draw. Buying them together avoids ordering a pen and then discovering the cartridge format or the diluent is missing. The parts remain individually replaceable afterwards.
Is the pen in a kit reusable?
Yes. Every pen we stock is reusable and the cartridge is the only consumable. There is no proprietary refill, so the pen keeps working with any standard 3 ml cartridge.
Are needles included in the kit?
No. Needles are not included or sold by us. The pens use a standard screw-on pen-needle interface.
Are these medical devices?
No. Everything here is laboratory hardware sold for research, educational, and demonstration use only. It is not a medical device, it is not sold sterile, and it is not for human or veterinary use of any kind.
Questions people ask before ordering
Do you ship to Canada / Australia?
Yes – Canada, Australia and most countries. International orders over $100 ship free; under that, shipping is calculated at checkout. Customs duties, import taxes and local import rules are the buyer's responsibility.
What is your return policy?
Given the nature of these products, all sales are final. If we shipped a wrong or damaged item, contact us within 7 days of delivery with photos and we will replace or refund it at no cost. See our refund policy.
Does this fit Humapen Luxura or other third-party cartridges?
Our pens take standard 3 ml borosilicate cartridges with the 11 mm long stopper and fit the Gansulin, V1, V2 and V3 pens. Third-party cartridges vary by stopper length, which decides whether the pen seats them – check stopper length before buying elsewhere. We have not verified Humapen Luxura compatibility.
