Pen cartridge specs

[MietekFogg]

Hi
As the title says. I’m thinking about acquiring injections pen and wondering is there any specs I should be looking at when purchasing cartridges ? How’s everyone experience with sterility levels when ordering them from CN vendors ? Is the 3 ml standard for most of them ? And are the branded ones that cost upwards of 100€ worth it ? If I buy certain brand do I need to keep buying their cartridges too ? Maybe someone can share as well overall experience using them compared to standard syringes ? Thanks a million.

 

[Grogu]

Lot to unpack here, but I'll try with some of the ones that I know for sure:

Hi
As the title says. I’m thinking about acquiring injections pen and wondering is there any specs I should be looking at when purchasing cartridges ? How’s everyone experience with sterility levels when ordering them from CN vendors ?

I've never ordered carts from CN vendors, I look for US domestic vendors that sell carts with the sterility indicator activitated. But I think people buy carts from CN all the time. I doubt that they test the sterility after buying them from CN. They probably look for reputable sellers or sellers that others have used and have been okay.

Is the 3 ml standard for most of them ?

Yes, 3mL is the standard.

And are the branded ones that cost upwards of 100€ worth it ? If I buy certain brand do I need to keep buying their cartridges too ?

There are certain pens that take proprietary carts (mostly some Novo pens) but many times there are adapters that are sold so that a standard 3mL cart can be used. Many pens that you can source online (for example the Humapen Savvio) say in the marketing material that you can only use Lilly carts, but that's BS, just marketing.

Here is a website that provides a nice summary of whether an adapter is needed and/or if a spacer is needed.

Pen comparison V2 – Daro Pep Accessories

www.daropep.net

Maybe someone can share as well overall experience using them compared to standard syringes ?

Very convenient if you pin a lot, the relative convenience is diminished (in my opinion) if you're only pinning once a week. But I do like that with a cart that you can expel all the extra air, whereas with a vial, the ambient air that you inject to draw doses stays in there.

I like pens and have one that I'm using now. If you're taking a bunch of peptides and taking those daily, I can't imagine anything more convenient.

 

[Grogu]

Recent thread that provides a robust discussion that you mind find helpful:

Can someone give me the TLDR on pens

What pens do you love and where are they easiest to source? I promise I'm not lazy, just annoyed and overstimulated. I have read so many threads on pens that I'm now dazed and confused, and not because I'm toking the reefer. I would really appreciate (and maybe others would too) one thread...

glp1forum.com

 

[MietekFogg]

I’m thinking about it as want to try the GLOW/KLOW STACK to improve my complexion and try to heal up old shoulder injury and I’ll be facing daily injections compared to weekly Reta shots so feel like pen would be very handy. Thanks again.

 

[Grogu]

I’m thinking about it as want to try the GLOW/KLOW STACK to improve my complexion and try to heal up old shoulder injury and I’ll be facing daily injections compared to weekly Reta shots so feel like pen would be very handy. Thanks again.

I don't pin any glow, klow, etc. but I seem to recall some peptide is really thick is not suitable for pens, but I don't recall which one. So, you might want to do a little research around that.

But yes, for daily injections, pens are super convenient. An added benefit is the the needles are really sharp since they haven't punctured a vial topper.

 

[CranberryRocker]

Check any pen you buy for delivery accuracy. Peptide critic has a good YT vid if in doubt. I’ve done it with all of mine, several times each for repeatability testing to make sure it’s not a fluke.