350 Analysis of fibroblast pen usage on TikTok: A cross-sectional study

Abstract

Since its inception in 2016, TikTok, a social media platform wherein users can share videos, has served as a tool for the propagation of potentially dangerous cosmetic trends, most recently the fibroblast pen. Potential adverse effects include the development of dyspigmentation, scarring, and mechanical burns. This study assessed social media content to improve our understanding of fibroblast pen, also known as the plasma pen, usage amongst TikTok creators. An initial search of public TikTok posts tagged with “#PlasmaPen,” “#PlasmaPenTreatment,” “#FibroblastPlasma,” or “#FibroblastPlasmaPen” identified 200 posts, of which 78 were eliminated after accounting for overlapping posts, posts that were later deleted, and those in languages other than English. We analyzed posts according to creator type and classified them into 4 main themes. The 122 videos were later re-viewed to provide more detailed subdivisions within the 4 main themes. Analysis showed that 36% of the posts were created by lay-person TikTok users, followed by 25% of posts by self-proclaimed fibroblast skin tightening specialists. Major themes include advertisement of the pen (61%), experience with the pen (26%), education on the pen’s uses and benefits (6.5%), and warnings related to its usage (6.5%). TikTok users are more likely to encounter a post regarding pen usage from uncredentialled, non-medical professional accounts. Given that most of the posts were related to advertisement of the procedure and education, respectively, unsubstantiated claims may be disseminated. Only 6.5% of posts were created with the intention of serving as a warning to users, with most being created by medical doctors. Dermatologists should be aware of the misinformation regarding fibroblast pens and consider posting on social media to raise awareness about this potentially dangerous skincare trend.