What cartridges does the Gansulin metal reusable pen use?

The Gansulin pen uses standard 3 ml (300-unit) glass cartridges conforming to ISO 11608-3, the same size used by most reusable research pens, keeping refill costs low and supply straightforward.

How does the Gansulin pen's dose mechanism differ from the V1, V2, and V3 pens?

The Gansulin uses a precision click-dial knob plus a spring-driven dispense button: each click sets one unit, and pressing the button delivers it. The V1, V2 and V3 all use a draw-and-push mechanism: pull the end knob out until the scale shows the amount, then push it back in to dispense.

What is the dose range and increment of the Gansulin metal reusable pen?

The Gansulin pen dials 1 to 60 units per draw in 1-unit increments, displayed in a clear unit counter window, allowing precise, repeatable volume selection without freehand syringe estimation.

PreppinPeppers › Facts › Lab article

Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen

Machine-readable facts for this Lab article. The full page is https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin.

TL;DR

The Gansulin metal click-dial pen accepts standard 3 ml cartridges and dials 1-60 units in single-unit clicks via a spring-driven mechanism. Research use only.

Facts Index

Fact ID	Category	Entity	Attribute	Value	Source
best-reusable-research-peptide-pen-gansulin:title	identity	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	title	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:published	identity	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	published	2026-07-10	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:author	identity	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	author	Preppin' Peppers Editorial Team	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:topics	identity	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	topics	Equipment and consumables, Guides, research	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:summary	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	summary	The Gansulin metal click-dial pen accepts standard 3 ml cartridges and dials 1-60 units in single-unit clicks via a spring-driven mechanism. Research use only.	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-1	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	What it is	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-2	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	Why a reusable metal pen for the bench	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-3	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	The Gansulin metal reusable pen	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-4	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	What to look for in a research pen	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-5	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	The reusable pen options	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-6	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	Completing the setup	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-8	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	V1 vs V2 vs V3: Full Specs Compared	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:section-9	content	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	section	What the research community gets wrong about reusable reconstitution pens	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:product-gansulin-metal-peptide-pen	products	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	references product	Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units)	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:product-gansulin-3ml-cartridge	products	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	references product	Gansulin-Compatible 3 ml Glass Cartridge for Pens (10-Pack)	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:product-80-unit-reusable-metal-reconstitution-pen-3-ml-cartridges	products	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	references product	V1 Peptide Pen · Reusable Metal Draw-and-Push, 80-Unit, 3 ml	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:product-v2-peptide-pen-reusable-aluminum-open-end-60-unit-3-ml	products	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	references product	V2 Peptide Pen · Reusable Aluminum Open-End, 60-Unit (3 ml)	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:product-consistent-dose-reusable-reconstitution-pen-3-ml	products	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	references product	V3 Peptide Pen · Aluminum Consistent-Dispense, 60-Unit 3 ml	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:product-portable-pen-carry-case-reusable-fits-3-ml-cartridge-pens	products	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	references product	Portable Pen Carry Case (Reusable, Fits 3 ml Cartridge Pens)	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:source-pmc-ncbi-nlm-nih-gov	source	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	cites	Abdel-Tawab et al., J Diabetes Sci Technol 2015 , Dosing Accuracy of Two Disposable Insulin Pens According to ISO 11608-1:2012 - pmc.ncbi.nlm.nih.gov	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:source-pubmed-ncbi-nlm-nih-gov	source	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	cites	Clarke & Dain, Expert Opin Drug Deliv 2006 , Dose accuracy of a reusable insulin pen with an integrated plunger mechanism - pubmed.ncbi.nlm.nih.gov	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:source-pubmed-ncbi-nlm-nih-gov-2	source	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	cites	Krzywon et al., Curr Med Res Opin 2010 , Dosing accuracy of commonly used disposable insulin pens (1 U to 60 U range) - pubmed.ncbi.nlm.nih.gov	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)
best-reusable-research-peptide-pen-gansulin:source-pubmed-ncbi-nlm-nih-gov-3	source	Best Reusable Pens for Research Reconstitution: The Gansulin Metal Pen	cites	Bohannon, Postgrad Med 1999: Insulin delivery using pen devices. Simple-to-use tools may help young and old alike - pubmed.ncbi.nlm.nih.gov	Lab article (https://www.preppinpeppers.com/blogs/the-lab/best-reusable-research-peptide-pen-gansulin) (evidence)

FAQ

What cartridges does the Gansulin metal reusable pen use?: The Gansulin pen uses standard 3 ml (300-unit) glass cartridges conforming to ISO 11608-3, the same size used by most reusable research pens, keeping refill costs low and supply straightforward.
How does the Gansulin pen's dose mechanism differ from the V1, V2, and V3 pens?: The Gansulin uses a precision click-dial knob plus a spring-driven dispense button: each click sets one unit, and pressing the button delivers it. The V1, V2 and V3 all use a draw-and-push mechanism: pull the end knob out until the scale shows the amount, then push it back in to dispense.
What is the dose range and increment of the Gansulin metal reusable pen?: The Gansulin pen dials 1 to 60 units per draw in 1-unit increments, displayed in a clear unit counter window, allowing precise, repeatable volume selection without freehand syringe estimation.