12 Ways to Protect Your Hair From Sun Damage, Saltwater, and More This Summer

"Chlorine is an oxidizing element! When it reacts to metals naturally occurring in water, it can give your hair a beautiful seaweed color that . . . nobody actually thinks is beautiful," says Cash Lawless, a celebrity stylist. "If you think a swimming cap would ruin your look (totally understandable) use a protective shield before exposing your hair to sun, salt, and chlorine."

Lawless is a fan of the Rinzu PROTECT Spray by SEVEN haircare ($28), which provides a "perfect base layer of protection."