(Chemistry prof Joe Schwarcz): They sold out after just four hours. And they weren't even hotcakes. They were just little capsules. But these capsules came with a nifty promise. Pop some, and wrinkles, those fearsome hallmarks of aging, would be ironed out from the inside! Cleverly named "Strength Within," the contents were the product of at least five years of research by a team of scientists at Unilever's laboratories in Britain.