For every game-changing beauty hack that goes viral on TikTok, there’s another that makes us wonder if the DIY movement has gone a bridge too far. And at-home plasma pen treatments fall squarely in the latter camp.

Even if you’re not familiar with the tool itself, if you regularly engage with skin-care content on TikTok, it’s very possible you’ve seen the results of one: Plasma pens leave pinhead-size markings on the skin. Those who receive full-face treatments are left looking something like pointillist paintings. 

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