Photo: Jeffrey Westbrook

3 of 7
Marine Extracts
Anything hardy enough to survive on the ocean floor might include ingredients that could help your skin withstand environmental stressors, right? That’s why brands have begun investigating the skincare possibilities of marine plants. “They’re rich in amino acids, proteins, and vitamins, with both moisturizing and antioxidant properties, making them key players for skin barrier protection,” says Joshua Zeichner, MD, director of cosmetic and clinical research in dermatology at Mount Sinai Hospital in New York City. Research indicates that the algae- derived enzyme photolyase can prevent and even reverse sun damage when applied topically. Scan the ingredients list for photolyase or plankton, a microalgae.

Find it in: Fresh Lotus Youth Preserve Rescue Mask ($62;