The Cylindrotheca fusiformis extract is a marine micro-algae. Because of the risk of pollution in the seas, the producer grows the micro-algae in a specially built eco-facility. This not only guarantees the purity of the algae, but also means that the ecological balance of the oceans is not disturbed by uncontrolled harvests. These micro-algae are packed with vitamins such as A, D, E and K, minerals and essential fatty acids, such as omega-3. Research has shown that the algae extract firms the skin, and visibly reduces fine lines and wrinkles. You can find the extract in Comme Ça product Le Youth Sérum.