Cincinnati, Ohio-based cosmetic chemist Kelly Dobos adds that, depending on composition, just about any lip product can act as a stain or tint. If you have dry lips, "A lip mask or light, clear lip balm will help even out your lips' hydration levels, prepping them for a more even application," Claire says. For our review of the best lip stains, we enlisted the help of multiple editors, writers, contributors, and professional makeup artists to review the products.