Martha Stewart isn't slowing down at 84. The lifestyle entrepreneur, cookbook author and TV personality, who just celebrated her birthday on Sunday, is launching a new skin care line, debuting this September.

Martha Stewart is the face of her new brand. The lifestyle guru has been the face of all of her brands, but now at 84, she’s launching one that actually requires it: her first skin care line.

Martha Stewart, 84 and glowing, reveals her long-kept skincare secret with the launch of Elm Biosciences, a “smart aging” beauty line backed by 350 dermatologists.