While scrolling through the app one day, I came across a video by Sarah Wolak, who, in less than a minute, convinced me that I needed to use food coloring as a lip stain. As someone who is very ...

TikTok is a dumping ground for endless beauty tips and hacks — and the latest one has raised some doubt over how safe it is. Users are making their own lip-stain by directly applying food dye to ...