Although white wine might be your summer sip of choice, preliminary research out of the University of Barcelona points to a new reason to choose red. Researchers found that proanthocyanidins, antioxidants found in red grapes, may help prevent oxidative reactions in your skin. Oxidative reactions, often stemming from sun exposure, can damage and kill cells, which in turn may lead to sunburns, wrinkles and possibly skin cancer. Before you pour yourself another glass, though, remember that the recommended cap on alcoholic beverages is one a day for women, two for men.