People love plumping up their lips and now it seems some are taking matters into their own hands to get the pout they want. There’s an alarming new trend of people using DIY filler pens on their lips and posting it online. Videos on YouTube and TikTok show women injecting their lips or face with a Hyaluron pen, which uses air pressure to insert fillers. But this is one trend you don’t want to try at home.

There are tutorials from YouTubers like Baby Em that demonstrate how they use filler pens and videos that explain the best filler options. The injection pens they use were designed to be used for painless insulin delivery, and you can buy the Hyaluron pen and fillers on Amazon. But she and other dermatologists warn against doing any DIY fillers at home.

Doctors are saying this is one of the worst trends that surfaced because  Hyaluronic acid, a type of facial filler, can cause swelling, lumps, or even blindness. Another reason to avoid the DIY treatment is that buying the products online is dicey because they may not even be real fillers. So if you REALLY want to plump up your lips, book an appointment with a licensed, trained professional instead of messing with your own face.