Antioxidative Power of Formulations Over Life Time: Unique Active Superior than Vitamins

The human skin is situated at the interface of the organism and its environment and therefore exposed to a variety of physical and chemical assaults. Exposure to ionizing and UV radiation or xenobiotics generates free radicals in excessive quantities that quickly overwhelm tissue antioxidants and stress-degrading pathways. Apparently there is a need for providing the skin with potent antioxidants to prevent accelerated ageing processes. Commonly used antioxidants in cosmetics like vitamin C, its derivatives or vitamin E are effective, but highly instable during storage. Ideal anti-(photo) ageing concepts should provide maximum efficacy paired with excellent stability and galenic elegance. RonaCare® AP as candidate of a newly developed class of antioxidants fulfils all these requirements. In the present study cosmetic formulations containing different antioxidants are tested with respect to their Antioxidative Power (AP) directly after processing and after different periods of time at different storage conditions. Vitamin-containing formulations show a dramatic decrease in the Antioxidative Power and some of them show undesirable discolorations. RonaCare® AP did not show galenic disadvantages such as yellowing of the formulation and remains stable without loss of its antioxidative activity. These results indicate RonaCare® AP as superb antioxidant not only for anti-ageing skin care but also for sunscreen formulations.