If you’ve stepped foot in a Sephora recently, odds are you’ve witnessed tweens and teens flooding the skincare aisles and filling up baskets to the brim. “I saw this one on TikTok,” a seemingly no-older-than-12-year-old girl says to a friend as they purchase bottles of serums designed to smooth their mother and grandmother’s lines. The beauty marketplace has transformed into a social haven, and teens have moved away from buying lip gloss and face wash and are now purchasing potent, anti-aging formulas that could be doing far more harm than good.

And it's not just the under-18 crowd. Between TikTok Shop, skinfluencers, and the endless stream of celebrity beauty launches, we're all being encouraged to add another cream, exfoliant, or treatment to our routines. And for those of us dealing with acne, that temptation can be especially strong—when you're trying to clear persistent breakouts, it’s easy to convince yourself that every buzzy ingredient might finally be the one that finally works.…