What is the Murad Retinol Booster for HydraFacial Murad Retinol Booster for HydraFacial is a potent serum that accelerates skin’s surface renewal and plumps to minimize the look of wrinkles, even tones and boost a youthful, radiant finish after just one treatment. Developed specifically for HydraFacial and inspired by the #1 Retinol product in the U.S.*, Murad’s Retinol Youth Renewal Serum, this youth-boosting serum powered by proprietary Retinol Tri-Active Technology renews, hydrates and visibly plumps. Minimize the look of wrinkles in an instant—and see incredible lasting results!