Refillable injector pen

The best refillable pens out there are the ones who use both springs and mechanical tension and not simply mechanical tension. If you've ever used a disposable pen auto injector (GLP or some other medication), you would realize just how smooth these are.

These pens simply require you set the dial to what you would like to inject, and then press ONE button. The mechanic pens are the ones who require multiple clicks, one click for each drop. Whether its metal or plastic (on the outside), doesn't really matter.

Sadly, almost all pens out there are based off mechanical tension, because they are much cheaper and easier to produce.

I have since swapped my Humalog Luxura HD to GensuPen2 which uses the same lily cartridges / pen needles. The one click button is on the side. The difference is night and day. I also avoid anything Novo related due to how they use special cartridges.

TLDR: Look for these keywords. Plastic/metal is irrelevant.
(1) Spring-assisted / Spring-based
(2) Reusable

Pens that I would recommend (In no order):
I am not affiliated, I do not provide sources and I do not get commission or any sort of benefit.

GensuPen2
(I use this)
Gansulin Pen
(China)
This is the oldest on this list, I would recommend it the last.
CrisPen
(Brazil)
 
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Owen Mumford Autopen is also spring loaded. The disadvantage is if you dial past your desired dose, it's not possible to dial back without pressing the trigger.
 
Owen Mumford Autopen is also spring loaded. The disadvantage is if you dial past your desired dose, it's not possible to dial back without pressing the trigger.
Owen is the first producer of the spring loaded pen which is being discontinued this year. I did not suggest it as it's significantly older than the newer pens. I'm looking forward to seeing what they're producing next. There is a high chance it also will not be B2C but simply B2B based on the direction things are heading.

For those looking for alternative spring based pens, you can look at Nemera which does B2B and sells spring based auto reusable pens to companies. If you scroll down it shows the list of pens that are sold to others that are being used.
 
I’ve read this entire thread twice this morning and the information is beginning to turn to mush. So I’d like to ask for clarification.
The Ergo II (or clone) has a dial that reaches 60 where each integer represents 0.01mL, correct? Making the 60 independent from the cartridges total volume. Also, can the dial be reset while the plunger remains in place.
 
I’ve read this entire thread twice this morning and the information is beginning to turn to mush. So I’d like to ask for clarification.
The Ergo II (or clone) has a dial that reaches 60 where each integer represents 0.01mL, correct? Making the 60 independent from the cartridges total volume. Also, can the dial be reset while the plunger remains in place.
Yeah if you take it to 60 it is 0.6ml

If you wind it past where you want it, you just wind it back no problem
 
Has anyone experienced the micro rubber stoppers in their cartridges expanding and shedding? I think this is from the high BB percentage in the oils I am using (bayer testoviron/androtardyl).

Guessing there is no real solution to this other than getting through the vial more quickly?

A real shame because castor oil is such a pain to draw and these pens were making life EZ.
 
Are there replacement parts available anywhere? The ones I use for oils keep getting broken/melted at the base of the plastic cart holder, I already could use at least 5 of ‘em. Anyone seen these available separately anywhere? I’m loving the pens but the ones I use for oils are gonna get expensive at this rate if I have to buy yet another whole effing pen I don’t need each time one breaks again.
 
The best refillable pens out there are the ones who use both springs and mechanical tension and not simply mechanical tension. If you've ever used a disposable pen auto injector (GLP or some other medication), you would realize just how smooth these are.

These pens simply require you set the dial to what you would like to inject, and then press ONE button. The mechanic pens are the ones who require multiple clicks, one click for each drop. Whether its metal or plastic (on the outside), doesn't really matter.

Sadly, almost all pens out there are based off mechanical tension, because they are much cheaper and easier to produce.

I have since swapped my Humalog Luxura HD to GensuPen2 which uses the same lily cartridges / pen needles. The one click button is on the side. The difference is night and day. I also avoid anything Novo related due to how they use special cartridges.

TLDR: Look for these keywords. Plastic/metal is irrelevant.
(1) Spring-assisted / Spring-based
(2) Reusable

Pens that I would recommend (In no order):
I am not affiliated, I do not provide sources and I do not get commission or any sort of benefit.

GensuPen2
(I use this)
Gansulin Pen
(China)
This is the oldest on this list, I would recommend it the last.
CrisPen
(Brazil)
How do you actually order that Gensupen?
 
Are there replacement parts available anywhere? The ones I use for oils keep getting broken/melted at the base of the plastic cart holder, I already could use at least 5 of ‘em. Anyone seen these available separately anywhere? I’m loving the pens but the ones I use for oils are gonna get expensive at this rate if I have to buy yet another whole effing pen I don’t need each time one breaks again.

I'm surprised that pens even work well for oils.

How much volume per shot and how long does it take?
 
I’m doing “25 click” shots daily right now. Works pretty well with the 29g pen needles, doesn’t take long at all.
 
I'm surprised that pens even work well for oils.

How much volume per shot and how long does it take?
Works really really well. You can use the pen needles, but for oils they are less accurate. If you just test with a syringe in the stopper and click 25, you'll usually get 21-23ish, depending on the product. But it pushes out thick castor oil into a 30g 0.5 slin pin for me and then I can visually make sure i'm getting the right amount, then pushing castor oil out of a barrel that small is easy.

Only problem is melting rubber stoppers from BB atm and, I guess, melting actual plastic from the screwthread pen plunger
 

India, Europe, Poland. Message a source directly and ask them to source it for you. We have a few very capable ones in the ugl forums.

There's also a Chinese clone which I can confirm works the same. They even copied the user manual..:rolleyes:

Chonghe Lin​

 
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India, Europe, Poland. Message a source directly and ask them to source it for you. We have a few very capable ones in the ugl forums.

There's also a Chinese clone which I can confirm works the same. They even copied the user manual..:rolleyes:

Chonghe Lin​

I. Have lots of both those types, I’m trying to get fancier over here haha
 
Can someone help me with the dosage of these pens? I bought one of the cheap ones for the first time (single cartridge 3 ML), and it has 80 clicks on the dial.

I plan to insert a 5mg semaglutide cartridge inside. How do you calculate the exact dosage for each click?
 
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