Peptides are getting a lot of attention lately due their ability to increase collagen production. Skin is made mostly of collagen. As we age, we lose collagen and thus see thinner, more wrinkled skin. Collagen is made up of amino acids, which in turn are made up of peptides. Peptides tell your skin to make more collagen, resulting in fewer wrinkles. Rice bran and soybean proteins do an amazing job of reducing dark circles and caffeine has been added to help reduce puffiness. A fast-absorbing crème that feels great.