Why Harvard’s Top Expert Recommends Sunscreen As Best Anti-Aging “Treatment”

In an era of high-tech lasers and "prejuvenation" injectables, one of the world’s leading medical experts is bringing the beauty industry back to basics.   Dr. Samuel J. Lin, an associate professor at Harvard Medical School and a board-certified plastic surgeon, suggests that the most powerful weapon against time isn't a costly procedure—it’s daily sun