The sun, chlorine and salt water can wreck havoc on your hair color. Here's how to fix: 1. Wear a hat or bandana (ala Angelina Jolie) in the sun. 2. Invest in sunscreen shampoos and products. There are a ton of new ones on the market, at all prices. 3. Before swimming, rinse hair with tap water. This will cut down on salt and chlorine absorption, according to US Weekly magazine (July 24, 2006).