Active oxygen has the distinct property of being a powerful factor and facilitator in the passage of the active molecules with which it is combined. Formulas with active oxygen are hypoallergenic and suitable for all skin types, needing no preservatives thanks to its cleansing action. All treatments are formulated and developed in our Swiss laboratory. Karin Herzog is the world leader in oxygen skincare. Founded more than 40 years ago by the Nobel institute honoree, dr. Paul Herzog, our Swiss lab continues to produce one of a kind formulations that harness the power of active oxygen to revolutionize the skin. The Karin Herzog skincare range works to restore the natural vitality of the skin in a fast and efficient way.