Oral hygiene isn’t rocket science, and yet for many of us, it can be tempting to run after quick fixes we find on social media rather than work on developing positive, productive, healthy habits. Purple toothpaste seems to fall into the former category when it comes to the desire to have a set of perfect, white teeth. You may have seen TikTok content creators promoting purple toothpaste and touting the logic that “purple neutralizes yellow”, selling you a shortcut to “perfect white teeth” and a gleaming smile. But experts and experimenters have cast doubt on the products’ lofty claims, as peop…