Needless Pen

[Sid the SeaGull]

Hi crew, Obligatory, I'm new new here so apologies in advance if wrong section or no links should be shared , I'm happy to be educated of that the case.

I did search the forums but I could not find info on this which surprised me . I would have thought if this worked then they may be popular. Seems like a good option if it's effective.

Has anyone used Needless pens ? I've not but I'm considering as an option.

Here is an example .

https://a.aliexpress.com/_mOJc3Y9

 

[basedpepbae]

I’ve never heard of this before and after looking into it briefly, I wonder how it can be less painful than an insulin syringe given the amount of force that would be needed to send the medicine through your skin? Maybe someone can chime in with experience with one of them.

 

[EchoPale]

I’ve been seeing adverts for similar on Facebook this week all of a sudden. At least in that one, it seems like a quite expensive way of going about our research.

 

[IshimaruKenta]

Sorry, this item's currently unavailable in your location.

Womp.

 

[Dahaka]

Wow that sounds interesting. Watched some YT videos and apparently it’s painless.

I would be willing to try depending on other people’s experience with it!

 

[Labcat]

Well aliexpress won’t show me either, but I’m actually interested if this is a reliable device for dosing daily. But how much did this device cost and how many years is the expected service life?

 

[ambot88]

seems like more trouble than it's worth unless you're very needle adverse.

 

[fetefille]

I think a lot of of the slimmer ones are used to "inject" filler into lips, etc.

 

[weightlossking84]

I had major reservations about injecting myself but wow was it so much easier then expected

 

[Abrakebabra]

This was the ChatGPT take on them - so take that for what's its worth. TL;DR seems to be that they an option if you have severe needle phobia, but aren't as reliable or accurate.

"These are “jet injectors”. Instead of a needle, they use a very fast, very thin stream of liquid driven by a spring or compressed gas. The jet hits the skin at high pressure, parts the top layers, and deposits the drug into the target layer (intradermal, subcutaneous, or even intramuscular) depending on the device design, nozzle, and settings.

Pros vs standard subcutaneous with a needle​

• No needle: big win for needle phobia, and no sharps bin for that dose.
• Speed: the actual delivery is quick.
• No needle-stick injuries: less risk of accidentally pricking yourself or someone else.
• Some people find it less “stingy” than a needle, especially for very frequent injections (varies a lot person to person).

Cons vs standard subcutaneous with a needle​

• Dose and depth can be less predictable than a standard pen needle. Technique, skin thickness, angle, pressure against the skin, and device wear all matter. With drugs where accuracy matters, this is a real downside.
• Local skin trauma can be worse: bruising, bleeding spots, swelling, welts, and soreness are common complaints. Some people find it more painful because it is basically a tiny pressure blast.
• Cross-contamination risk if shared or poorly designed: older jet injectors had documented issues with back-spray and contamination between users. Modern medical-grade systems tackle this with disposable single-use caps/nozzles, but random online-market devices are a gamble. Never share one between people.
• More faff: cleaning, loading, priming, replacing parts, and troubleshooting. A normal pen needle is boring and boring is good.
• Not compatible with every medication: viscosity matters, as does required delivery depth. Many meds are tested and licensed for pen needles, not for jet injectors, so absorption and effect can differ.
• Regulatory quality varies wildly: “needleless insulin injector” listings online are not the same thing as a regulated medical device. For UK use, you want clear UKCA or CE marking plus credible manufacturer documentation.

Practical comparison for the typical weekly subq pen (insulin, GLP-1s like tirzepatide)​

• Pen needles (4–6 mm, 31–32G) are already very low drama and highly consistent.
• Jet injectors can make sense for severe needle fear, but they introduce variability and device-quality risk. For GLP-1 pens in particular, a jet injector is usually outside what the product was designed and tested for.

Bottom line​

If you are injecting something where consistent dosing really matters, standard subq with a pen needle wins on reliability, simplicity, and predictable absorption. Jet injectors mainly win on “no needle”, but you pay for it in cost, complexity, and a higher chance of bruising or inconsistent delivery, especially with cheap marketplace devices."