A skincare ingredient called Volufiline is being referred to as "filler in a bottle" due to its purported ability to plump wrinkles and give a more youthful appearance. The effectiveness of Volufiline is being questioned and debated, with some outlets seeking input from dermatologists and plastic surgeons to weigh in on its claims. Some individuals have reported positive results from using products containing Volufiline, but the ingredient's overall efficacy is still being explored and discussed.