Which Needle-free Injector Brand Should I Buy?

If I decide to get a needle-free injections system which one should I purchase?
Should I get the real Comfort-in™️ or maybe the cheaper knockoffs:
Hyaluron Pen, Thesera, Stabilizer or any other deice labelled “Jet Nebuliser” ?

It is a fact that the Comfort-in™️ is a registered, certified class 2 medical device with the European Union mark Ce and ISO certificates. It is also listed in the department of health of countries of distribution if required for professional use, therefore we can refer to it as “the real thing “.
* Comfort-in™️ comes with a 12 month warranty.

If you are medicated with prescription medication in injectable form, please consider carefully.

If you think that the devices labelled:”Jet-Nebulizer”, “Hyaluron-Pen”, “THESERA”, “STABILIZER” are registered and certified or even been tested, so please try to put your hands on any type of relevant documents, you would probably find these devices for sale on eBay, Amazon and other “beauty and aesthetic” specific online shops and no one answering your phone calls like us.
Now ask yourself when I’m sick should I see a doctor or a magician?
When I’m sick should I get a prescription for medication or should I get a spell from my magician?
If you answered “see a doctor and get a prescription” , then why would you even consider purchasing a fake device that hasn’t been tested, it’s not certified and definitely not registered.
What guarantee would you have that if would work?

Why would you buy a device called nebuliser for needle free injections?
What is a Nebuliser?
In medicine, a nebulizer (American English)[1] or nebuliser (British English)[2] is a drug delivery device used to administer medication in the form of a mist inhaled into the lungs. Nebulizers are commonly used for the treatment of asthma, cystic fibrosis, COPD and other respiratory diseases or disorders. They use oxygen, compressed air or ultrasonic power to break up solutions and suspensions into small aerosol droplets that are inhaled from the mouthpiece of the device. An aerosol is a mixture of gas and solid or liquid particles.