Doutzen Kroes

From Kristen Stewart to Bella Hadid.

From Salma Hayek to Kristen Stewart.

You're going to want alllll the shades.

First, transition to a healthier blonde.

The eight-glasses-a day rule is a lie.

Six limited-edition shades of scarlety goodness.

You'll look effortlessly romantic.

Try these tones for better hair health.

You know those baby hairs around your forehead? Here's how to play them up—or (if you must) tame them into submission.