Common term for wrinkle treatments with injections, whereby wrinkle treatments with botulinum and fillers are meant in the broadest sense. The German-language term "Unterspritzung" is more common in Germany and Austria than in Switzerland. In the narrower sense, only filler treatments should actually be referred to as "wrinkle injections", as fillers line the tissue and can therefore "fill" a wrinkle.

You can find more information on wrinkle treatments here: Wrinkle treatments.