Pomegranate and its extracts have antioxidant properties that, while not conclusively demonstrated on human skin, show promise in animal and in vitro studies. Topical application of products containing pomegranate may improve the appearance of wrinkled skin by soothing skin and inhibiting damaging environmental stressors.
References for this information:
Journal of Drugs in Dermatology, June 2010, issue 6 supplement, pages S72-S81
Journal of Drugs in Dermatology, June 2009, issue 6 supplement, pages S5-S9
Journal of Agricultural and Food Chemistry, January 2002, issue 1, pages 166-171