Don't let these beauty blunders and bad-for-you habits get in the way of looking your absolute best.

1. New Hair Color
"Even if your colorist is the absolute best, avoid making changes to your hair within a week of your wedding," says Paul Labrecque, hairstylist and owner of Paul Labrecque Salon and Spa in New York City. "You never know how the color could oxidize or how it will look with your skin tone." If you want to refresh your hue without endangering your look, ask your colorist to put a clear gloss on your strands. "This will add a lot of shine and sheen," says Labrecque. But if you do get mixed up with some bad color before the big day, you wont do too much damage to your hair by getting it re-colored right away—as long as there weren't high levels of bleach involved in the process, says Labrecque. Photo: Condé Nast Digital Studio

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