Another popular ingredient? Seawater pearl, which is often used as a powder. It’s rich in proteins and amino acids, ideal for brightening and smoothing the skin, as well as for retaining moisture and offering overall anti-aging benefits, explains Fedotova. Spirulina—yes, as in the stuff you’d add to a smoothie—is also a good ingredient to seek out. “It’s another natural source of amino acids and proteins that help build collagen, and it also detoxifies and calms the skin, as well as contains essential vitamins and minerals,” she says. We could go on and on, but instead, we’ll just share a list of 10 of the best skincare products that rely on the ocean’s bounty to do great things for your skin.