These pastes get their name from their vibrant purple tint. “Purple toothpaste works by using purple dye to neutralize any yellowish stains or coloration on the teeth,” explains Rhonda Kalasho, DDS of ...
As global marketing campaigns go, getting Kim Kardashian to trigger a TikTok tidal wave of hype is probably about as good as it gets. Australian teeth whitening brand HiSmile, dubbed 'purple shampoo ...