What Are Exosomes and Why Are Skincare Experts Raising Red Flags? (2025)

By now, you’ve probably seen “exosomes” wafting across your For You Page, maybe sandwiched between a promo code for snail mucin and someone rendering beef tallow. Scroll through SkinTok long enough, and you’ll hit a flood of videos hyping exosome therapy, exosome serums, and exosome treatments promising the skin health of a cherub. Skincare companies have seized the term. Marketed as miraculous regenerative agents, you’ll find them on $300 facial menus, in post-micro-needling procedures, and across influencers’ skincare routines. TikTok content This content can also be viewed on the site it originates from. What Are Exosomes? An exosome is a teeny sac inside a cell, or what a scientist might call an extracellular vesicle. They act as tiny mailbags, shuttling mRNAs, lipids, and other genetic material through the cell membranes from one cell to another. Exosomes are a part of the body’s internal messaging system, regulating everything from cell growth to hormone production and gene ... Read full article.