Olay Professional Pro-X is a scientifically advanced line of skin care products designed to give you younger-acting, younger-looking skin in 28 days. Satisfaction Guaranteed. Engineered and tested by a specialized team of independent dermatologists and P&G scientists, the ingredients in these innovative products resignal the skin by exfoliating to renew and revitalize the surface while also replenishing the moisture barrier. The result is potent, proven, and professional.