RoC's skin care has been revolutionizing since 1957. This is the first of many collaborations with dermatologists to provide safe and effective products for its patients. Each RoCProducts are scientifically produced and tested to ensure the highest quality. its lead scientists will investigate up to 1,000 ingredients before arriving at the ideal formula. Once the formula is crafted, it goes through rigorous testing to determine its safety and effectiveness. Actually, RoC is one of the only manufacturers to conduct a one-year clinical study to prove that the benefits don't stagnate - continued use actually becomes more effective.