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

9. New-to-you Skincare Products
"Don't change your skincare regimen if you have fewer than two weeks to go before your wedding," says Jaliman. "You should change it months in advance." Swapping in a new product could lead to allergic reaction, dryness, oiliness, or a bevy of other side effects that take time to correct. "Be sure to see your dermatologist a few months ahead of time," says Rosemarie Ingleton, MD, a board certified dermatologist in New York City. "Your doctor can give you a personalized pre-wedding skin care routine, which will address your specific concerns to make sure your skin is radiant for the big day. Your dermatologist should be up there on your to-do list with the dress fittings and flowers." Photo: Getty Images

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