REDNESSPrevent it: Limit sun exposure, alcohol, and spicy food intake, all of which dilate blood vessels.Fix it now: Dermablend Intense Powder Camo ($30, amazon.com) hides redness.Long-term fix: Jurlique Calendula Redness Rescue Restorative Treatment Serum ($54, amazon.com) stops ruddiness. [sidebar]SALLOWNESSPrevent it: Preserve collagen, which gives skin a glow, by wearing a cream with SPF 30 daily.Fix it now: Clinique Superprimer Colour Corrects Sallowness ($39, amazon.com) counters yellowness.Long-term fix: Bare Minerals Biolucent Mineral Brightening Treatment ($50, qvc.com) has red mangrove. DARK SPOTSPrevent them: Use weightless sunscreen like Olay Fresh Effects Sunscreen ($11, amazon.com).Fix them now: Never cakey, Covergirl Invisible Concealer ($7, amazon.com) targets even small spots.Long-term fix: NIA 24 Intensive Retinol Repair ($130, nia24.com) contains retinol and nicotinic acid to lighten over time. More from Prevention: The Best Beauty Products Of The Year!