Rare Beauty Brands has relaunched Dr. Dana’s Nail Renewal System, developed by famed dermatologist and nail expert Dr. Dana Stern, company officials announced today.   Dr. Dana’s easy-to-use Nail Renewal System utilizes plant-based science to combat brittle, ridged, weak and overprocessed nails leaving consumers with healthy, lustrous, glowing nails with the first application. Celebrities from all over the world have traveled to Dr. Dana’s NYC practice; she’s the only board-certified der...