The One Thing Our series The One Thing is a Sparknotes version of the products, rituals, and moments your favorite ...

In the name of beauty journalism, I've been testing the Sacheu Peel-off Lip Stain and the Wonderskin Lip Stain Masque for the past month to give you all the deets and my honest reviews.

Her current obsession is the Sacheu Lip Liner Stay-N-Peel Off Lip Stains ($12), the same ones beauty-loving TikTokers can't stop raving about for their all-day (and night) wear. She loves applying ...