An endocrinologist and a dermatologist share why hair texture changes, and what—if anything—you can do about it.

If you have straight hair and are looking to add some volume and texture, you’re in for a treat. Straight hair has its own ...

Humidity may be great for your skin, but for your hair? Not so much. That moisture-rich air has a way of turning sleek styles ...

Suddenly, it was consistently wavy, even borderline curly. What in the world? In a search for answers, I turned to hair stylists, trichologists, doctors, and cosmetic chemists to help navigate ...

“Typically, the top layer of the hair is straight, and the underneath layers are either wavy or curly ... both bleach and heat damage, sometimes turning a head of curls or straight strands ...