US SELLER Manyo Factory Bifida Biome Complex Ampoule 50ml Korean Skincare. The Bifida Biome Complex Ampoule fortifies the skin barrier.It visibly plumps and nourishes skin's moisture barrier for lasting hydration.How to useAfter toning, take an ample amount and evenly apply along facial contour.Then, lightly tap with fingers to fully absorb into the skin.