Photo credit: Stephanie Reis via Getty Images Prepping hair for summer involves more than simply stocking up on a bottle of texturizing sea salt spray. The hot, humid weather can lead to severely dry, damaged hair that will break easily, frizz uncontrollably and, if things get serious, possibly discolor. To ensure you're really prepared for the months filled with sun and sweat, celebrity hairstylist Mark Hill has four tips he says are necessary for maintaining healthy and beautiful hair all summer long.