Could you ever imagine using sandpaper to brush your teeth? Probably not, unless you’re auditioning for a extreme survival reality show. But thanks to the wonders of social media algorithms, millions of people are willingly scrubbing their teeth with something shockingly similar: activated charcoal.

While the internet promises a Hollywood-ready smile or perfectly straight teeth in five minutes, actual clinical science tells a completely different story. Let’s dive into why these viral DIY trends might be doing more harm than good to your pearly whites.

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