There is a passion going on in the world of cosmetics for micro-organisms and other bacteria, both those that are found in the environment and those that settle in our human bodies. What new actives can they produce? What interactions can we generate with them to design new skin treatments? This was the main theme of the scientific conferences organized for the Jean-Paul Marty Days held in Paris on December 8-9, 2015. And it was an opportunity for Mibelle Biochemistry to introduce a new, absolutely innovative anti-aging cosmetic active derived from snow micro-algae.