This range promises results based on science, not fiction. Following the medical testing standards used for pharmaceutical studies, researchers at independent facilities conducted state-of-the-art, scientifically validated tests to measure the performance of Cosmedicine products. The result is the most effective skincare you can buy without a prescription, using over the counter actives and advanced ingredients to achieve optimum skin health. Despite the high potency of Cosmedicine ingredients, the products are gentle enough to be used by even the most sensitive skins.