See a Visible Difference in as little as 6 days. With combination skin, oil control is a balancing act. You need it, but too much can cause irritation. This regimen draws on 100 years of spa science to create the perfect balance of oil control, hydration and treatment for radiant and healthy looking skin. This set includes: Visible Difference Skin Balancing Exfoliating Cleanser 1.7 fl. oz. Visible Difference Skin Balancing Toner 1.7 fl. oz. Visible Difference Optimizing Skin Serum .17 fl. oz. Visible Difference Skin Balancing Lotion Sunscreen SPF 15 1.0 fl. oz. When using the new Visible Difference Optimizing Skin Serum together with the spa-inspired skin care regimen. Based on US in-home consumer test of Visible Difference Optimizing Serum on 55 women aged 30-50.