What if one of the best beauty products has been sitting in your medicine cabinet all along? Three years after her first visit to Cornell (Thank) U, GlossLab founder Rachel Glass is back with her newest venture, le-balme—and the story behind it is fascinating. Rachel shares why she believes petroleum jelly has been one of skincare's best-kept secrets, how she partnered with a New York dermatologist to rethink a product that's been around for generations (what they've done is amazing), and why...