O's beauty director, Valerie Monroe, discusses why gray hair can turn yellow--and how to fix it.

Five beauty gurus-over 40, at the top of their game and gorgeous - share their inspiring philosophies.

Stem cells may soon allow doctors to turn back the clock on damage caused by heart disease.

Beauty product tester Paula Begoun shares her favorite products for your face, hair and feet.

Amelia, Sacagawea, Dora ??? history is full of female explorers. Add O Magazine's beauty editors to that list. Val, Jenny, and Alessandra submitted to Botox, acupuncture, and lasers so they could share their experiences with you!