Heat and UV rays from the sun can leave your hair dry, dull and brittle; you need to take precautions to protect it, just as you would your skin. For extended periods in the sun, here's how to protect your hair.
Wear a hat or bandana. This may seem obvious, but a head covering acts as a barrier from direct sunlight. If you are heading out to a ball game or other activity where you will be in the sun for a long period of time, wear a hat.
Comb conditioner through your hair before heading to the beach or pool. Do not rinse. This will become a deep conditioning treatment for your hair, and help protect it from sun damage.
Put your hair in a twist or braids. The less your hair is exposed to the sun, the less it can get damaged.
Spritz your hair with sunscreen. Mix 1 teaspoon of sunscreen lotion with SPF of 25 or higher with 1/2 cup water in a spray bottle. Keep the spray bottle with you and spray your hair every couple hours while in the sun.
Find styling products with built-in protection. Several lines of hair care products have SPF and other ingredients to protect your hair. Read the labels. Avoid hair products containing alcohol, which can dry your hair and speed the drying effects of the sun.