Hyaluronidase.

"The benefits are that they can be dissolved with a special solution so if you don't like them they can dissolve them, and what they use to dissolve them is hyaluronidase, which is actually something that I'm more scared of than the fillers themselves because some people have had really really drastic results from it. Some people probably a lot, probably most people have it done with no issues, but hyaluronidase is meant to suck out the hyaluronic acid and remove the filler, but some people have had drastic reactions to this where it has some major side effects on their entire face and body. It ends up sucking it from everywhere, so you lose like all your moisture and your skin ends up looking and feeling wrinkled, dimpled, just older, even major pain and things throughout the body. I've seen some pictures and things like that. There has been more than enough cases that make me nervous about it."