By 18 or 19, your schedule is likely packed with college, work, or travel. To keep your blond looking salon-fresh without constant touch-ups, focus on .

Perfect for a busy lifestyle, this look uses a shadow root or balayage technique so you can go months between appointments without a harsh regrowth line.

Just like your skin, your hair needs SPF. Use a lightweight UV-protectant spray to prevent the sun from bleaching out your toner.

Late teens are a time of experimentation, but excessive heat is the enemy of blond hair.

Embrace silk rollers or braided waves overnight to get that "blowout" look without the damage of a curling iron.