Beauty looks we consider "classic" have evolved over time. In the '70s, pretty pastels were all the rage; in the '90s, makeup was all matte browns and pinks; and in the last decade, we've seen ...

There seem to be more amazing beauty products than ever before, but we don't really know yet if they're trends or classics—until we look back with hindsight. But, we can see the best sellers that have ...