Here's how it works: Float a clean strand of hair in a glass of water. If it sinks to the bottom, you have high-porosity hair ...

Once you've brushed out your curls, “Use your fingers or tail of a comb to guide the ‘wave ridges.’” Avila says. For a more ...

The Lineup is a monthly series where we're giving you an inside peek at the beauty lineups of the most sought-after experts ...