These scaremongering articles are bought and paid for.
CNN says: "Dermarolling might just kill us":
https://http://travel.cnn.com/hong-kong/life/microneedle-facial-treatment-335525Every single claim in that FUD piece is a lie. They call it "massage". They say you can get AIDS from it (which would not even be possible if you would use long needles on a HIV positive person and then roll half an hour later on your skin because the HIV virus is notoriously fragile and does not even survive a few minutes exposed to the air.)
They claim that no disinfectant can sterilize it. Chloramine-T can, because it has dual antibiotic action (it works like an antibiotic and not merely like a disinfectant).
They talk about "soaking in hot water" and "rinsing with disinfectant", which are silly things to do. Instead, you soak in disinfectant. Soaking is not rinsing!
They display a picture of the scariest-looking roller they could find, the type we discourage from using due to the fact it has no needles but knives.
Funny how we sold tens of thousands of dermaneedling devices over the past 7 years and we have yet to hear of a single customer of ours that got an infection. 10000 people rolling themselves with 1.5 mm or longer and exactly zero with an infection. That's because it nearly is impossible to get an infection from rolling your skin. That's just not how the immune system in the skin works.
In fact, it would be very, very hard to give yourself a skin infection with a dermaroller. I would be very surprised if you would get an infection from rolling your own feces into your skin for example. I know it sounds unbelievable, but I am willing to bet a lot of money that you will not manage to get a skin infection like that. Reasons: The great majority of fecal bacteria are either dead or quite harmless in small quantities in the skin. And your immune system is intimately familiar with those bacteria (microinjuries in your GI tract cause antibodies to be produced against the gut flora) so you just won't be able to cause a skin infection by rolling your own shit deep into your skin. It's time to put a stop to all the paranoia about how risky dermaneedling is. It is not.