For each game-changing beauty hack that goes viral on TikTok, there's an additional that makes us ask yourself if the do it yourself activity has gone a bridge as well far. And also at-home plasma pen therapies drop squarely in the latter camp.

Even if you're not knowledgeable about the device itself, if you regularly involve with skincare web content on TikTok, it's very feasible you have actually seen the results of one: Plasma pens leave pinhead-size markings on the skin. Those…