The Uglies by Scott Westerfeld

If you liked The Giver, you will like this book. Westerfeld has set up a utopian/dystopian society that depends on cosmetic surgery unlike anything we know today. The remnants of OUR society (we were destroyed by a petroleum virus) linger in the setting. A secret society dedicated to preserving indviduality, cosmetic-surgery free, lives off-grid in a place called "The Smoke" and provides an escape for those who don't want to be surgically altered into submission.