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"Recently, New York celebri-derm[ Patricia Wexler dished to us about her favorite ways to fake a tan](http://www.allure.com/beauty-trends/blogs/daily-beauty-reporter/2009/06/straight-from-the-doctors-mout.html). And during that same chat, she warned us about a skin problem that most women don't even know they have: [Ingredient](http://www.allure.com/magazine/2009/04/anti_aging_ingredients) overdose. See, it's all fine and good to use creams and lotions from different brands...until you inadvertently double (or triple) load on potentially irritating [ingredients](http://www.allure.com/magazine/2009/04/anti_aging_ingredients) and turn red, start to peel, even develop mild burns. And, over time, [Wexler](http://www.bathandbodyworks.com/category/index.jsp?categoryId=2910428&amp;amp;cm_re=ShoppingShortcuts-_-topnav-_-Wexler) says, all this cocktailing of products can actually cause your skin to become sensitive. So when you get home tonight, do yourself a favor and check your regimen for [Wexler's list of the biggest culprits](http://www.bathandbodyworks.com/category/index.jsp?categoryId=2910428&amp;amp;cm_re=ShoppingShortcuts-_-topnav-_-Wexler)\u2014retinol, glycolic acid (aka AHA's), vitamin C, and benzoyl peroxide\u2014then avoid [layering them](http://www.allure.com/magazine/antiaging), or at least try to use them at different times of day."^^<http://www.w3.org/2001/XMLSchema#string>
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