Clinique Fresh Pressed 7 Day System With Pure Vitamin C is a 7-day de-aging system. The pack contains 7 single-use packages of renewing cleanser powder with 100% pure Vitamin C and one pack of a 7-day vial of the daily booster with Pure Vitamin C 10%. Vitamin C is one of the most powerful de-aging vitamins. With every use, you will notice more radiant and brighter looking skin. Continuous use will reveal skin that is noticeably firmer, even-toned, smoother, diminished wrinkles and fine lines, with a radiant and younger looking skin that glows from within.