# Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) - facts

Canonical page: https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen
Type: product · Currency: USD

## TL;DR

Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) from PreppinPeppers. 4 options at 69.99-267.96 USD, 4 available to order. Includes: the pen (quantity per variant); zip case. Mechanism: click-dial. Sold for research and educational use only.

## Facts Index

| Fact ID | Category | Entity | Attribute | Value | Source | Evidence |
|---|---|---|---|---|---|---|
| gansulin-metal-peptide-pen:name | identity | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | name | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | WooCommerce product data | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:brand | identity | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | sold by | PreppinPeppers | WooCommerce product data | https://www.preppinpeppers.com/ |
| gansulin-metal-peptide-pen:category | identity | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | category | Peptide Pens | WooCommerce product category | https://www.preppinpeppers.com/collections/research-pens |
| gansulin-metal-peptide-pen:price | pricing | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | price | 69.99-267.96 USD | WooCommerce product data (live price) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:currency | pricing | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | currency | USD | WooCommerce store currency | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:options | availability | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | options available to order | 4 of 4 | WooCommerce product data (live availability) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:attr-bundle | specification | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | Bundle | 1 Pen, 2 Pens, 3 Pens, 4 Pens | WooCommerce product data (attributes) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:includes-1 | contents | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | includes | the pen (quantity per variant) | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:includes-2 | contents | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | includes | zip case | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:mechanism | specification | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | mechanism | click-dial | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:mechanism_detail | specification | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | mechanism detail | The ONLY click-dial pen in the range: one audible, tactile click per unit from 1 to 60, spring button, unit-counter window. | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:cartridge_compatibility | specification | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | cartridge compatibility | standard 3 ml / 300-unit glass cartridge with the 11 mm long plunger | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:needle_compatibility | specification | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | needle compatibility | universal 28G-33G screw-on pen needles; needles are NOT included in any pen or kit and we do not sell needles | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:excludes | contents | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | not included | cartridges; pen needles; bacteriostatic water | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:unit_scale | specification | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | unit scale | 1-60 units in single-unit clicks, 3 ml cartridge (300 units) | Curated product facts (product_facts.json, curated 2026-09-23) | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:reviews | reviews | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | published reviews | 191 | Approved customer reviews on the product page | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |
| gansulin-metal-peptide-pen:rating | reviews | Gansulin Pen · Reusable Click-Dial, 3 ml (1-60 Units) | average rating | 4.8 of 5 from 191 reviews | Approved customer reviews on the product page | https://www.preppinpeppers.com/products/gansulin-metal-peptide-pen |

## Buy

| Option | SKU | Price | Availability | Link |
|---|---|---|---|---|
| Bundle: 1 Pen | PP-GANS-1 | 69.99 USD | Available to order | https://www.preppinpeppers.com/?add-to-cart=24&quantity=1&src=ai-facts&fid=gansulin-metal-peptide-pen |
| Bundle: 2 Pens | PP-GANS-2 | 135.98 USD | Available to order | https://www.preppinpeppers.com/?add-to-cart=25&quantity=1&src=ai-facts&fid=gansulin-metal-peptide-pen |
| Bundle: 3 Pens | PP-GANS-3 | 203.97 USD | Available to order | https://www.preppinpeppers.com/?add-to-cart=26&quantity=1&src=ai-facts&fid=gansulin-metal-peptide-pen |
| Bundle: 4 Pens | PP-GANS-4 | 267.96 USD | Available to order | https://www.preppinpeppers.com/?add-to-cart=27&quantity=1&src=ai-facts&fid=gansulin-metal-peptide-pen |

## FAQ

### What is a Gansulin pen?

A reusable, metal-bodied click-dial pen made by Tonghua Dongbao. It was designed as an insulin pen, and unlike a prefilled pen it takes standard 3 ml (300-unit) glass cartridges you load yourself. The research community adopted it as a precision liquid-dispensing tool because the dial meters in 1-unit steps and the cartridges are a common, non-proprietary format. We sell it as laboratory hardware for research, educational and demonstration use only.

### Is the Gansulin pen accurate?

The manufacturer states the pen's accuracy conforms to ISO 11608-1 in the official Gansulin Pen manual. In handling terms: the dial moves in 1-unit (0.01 ml) steps with an audible click and a tactile detent for each unit, it can be turned back to reduce a setting without dispensing, and it will not dial past the volume left in the cartridge.

### How does the Gansulin pen work?

Unscrew the cartridge holder from the body, seat a standard 3 ml cartridge, then screw the holder back until it clicks. Turn the dial to set the number of units; the counter window shows the setting. Pressing the button releases the spring-loaded mechanism, which advances the plunger by exactly the amount set. Turning the dial backwards reduces a setting without dispensing anything.

### Gansulin pen vs Convipen — what is the difference?

Both take standard 3 ml glass cartridges and standard screw-on pen needles. The Gansulin pen is a click-dial pen: you dial the count from 1 to 60 units, one audible click per unit, then press the button and a spring-loaded mechanism advances the plunger by exactly that count. It also has dial-back correction and an overdraw interlock, which is why we stock it. For how the Convipen sets and delivers, check the Convipen's own specifications.

### What is the Gansulin autopen?

The same device. The Gansulin pen is a click-dial pen with spring-loaded push-button delivery: you dial the count, press the button, and the pen advances the plunger by that count in one movement. Because of that push-button delivery, some sellers list it as the "Gansulin auto pen"; it is the same reusable pen.

### What cartridges fit this pen?

Standard 3 ml (300-unit) glass pen cartridges, the same widely available format used across cartridge pens. No proprietary consumables and no lock-in. Fit depends on plunger length, so check the cartridge note at the top of this page before buying cartridges elsewhere.

### How precise is the dial?

The dial sets 1 to 60 units per draw in 1-unit (0.01 ml) increments, with an audible and tactile click per unit and a firm end-of-travel stop.

### Can a mis-set dial be corrected?

Yes. Dial-back correction reduces a set amount without dispensing a drop, and the overdraw interlock stops the dial when the setting exceeds what remains in the cartridge.

### Are needles included?

No. The pen uses a standard screw-on pen-needle interface; needles are not included or sold by us.

### What is in the box, and is the pen reusable?

One anodized-metal pen and one zip case. The pen is fully reusable; swap in a fresh standard 3 ml cartridge as needed.

### What is this pen sold for?

Research, educational, and demonstration use only. It is not a medical device, is not sold sterile, and is not for human or veterinary use of any kind.

### How much does the Gansulin pen cost?

A single Gansulin pen is $69.99. Two pens are $135.98, three are $203.97, and a four-pack is $267.96. The per-pen price also steps down automatically at checkout: $67.99 each for 2-3 pens, $66.99 each for 4-14 pens and $64.99 each from 15 pens. Prices are for the pen and zip case; standard 3 ml cartridges and bacteriostatic water are sold separately. Pick the number of pens in the selector above.

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Built from PreppinPeppers store data and verified sources only. Same content for every visitor. Research and educational use only, not for human or veterinary use.