Summer has officially begun. And while you're making your list of must-haves for the hot-weather season, be sure to add a nourishing hair treat to the list. The sun, salt and chlorine wreak havoc on hair, so extra moisture is a must if you want shiny, healthy strands. Consider Phillip Kingsley's Swimcap, which was launched at the behest of the Olympic Synchronized Swimming team. This super-conditioning cream helps protect against dryness, plus prevents colored hair from fading and blond locks from going green. Best time to use it? Fresh out of the shower when hair's damp.