A study links graying hair to stem cells getting stuck, unable to color new hair growth. Stem cells travel back and forth within compartments, but when they get stuck in one compartment, they cannot ...

It’s easy to take your hair for granted until it starts growing at a snail’s pace or shedding. While there are plenty of treatments out there to boost your hair, loading your plate with the best foods ...

The answer, unfortunately, isn’t so clear cut. But we chatted with dermatologists, nutritionists, and skincare experts to suss out the ways biotin can (and can’t) help nourish your strands and scalp.