How can I prevent my hair color from fading in the sun?
I recommend wearing a hat to prevent hair from fading, but if you don't have a hat, place hair in a very high bun on top of the head. This will ensure that the top layers and crown of the hair are covered and not exposed to the sun. You can also use a product with UVA/UVB filters that will protect your color.
Try L'Oréal Paris Everpure UV Protect Spray, $8.99; drugstore.com.