Bio nutrition is using ingredients from nature to enhance health and beauty. We are what we eat and that applies to skin just as much as say, bones and muscles. Skin needs vitamins, minerals, amino acids, protein, lipids, water and other specialized molecules.  Caire bio-nutritive skincare has zero fillers, unlike so many traditional (and sadly even some of the newer) beauty brands. Each and every ingredient brings nutrition into and onto skin, specifically for female 40+ skin. Cuz women should get to spend their hard earned cash on the good and the great. And not put up with anything less. Ever.