For every single game-changing beauty hack that goes viral on TikTok, there's one more that makes us wonder if the DIY movement has gone a bridge as well much. As well as at-home plasma pen therapies drop directly in the latter camp.

Even if you're not aware of the device itself, if you regularly engage with skin care material on TikTok, it's very feasible you have actually seen the results of one: Plasma pens leave pinhead-size markings on the skin. Those that receive full-face…