Amazon.ca Product DescriptionCellex-C advanced-C skin tightening cream contains high levels of vitamin C plus skin protecting anti-oxidants. A scientifically advanced product. This moisturizing formulation is designed to dramatically reduce the visible signs of aging - fine lines, wrinkles, age spots and sagging skin.Directions - Cleanse and Tone. Apply Skin Hydration Complex. Once a day, morning or night, apply Cellex-C Advanced-C Skin Tightening Cream over face, neck and V of chest. Apply moisturizer of choice.Cellex-C Complex is the original formulation in the early 1990's pioneered the worldwide interest in topical application of vitamin C. Cellex-C was the first topical ascorbic acid formulation to be sucessfully commercialized.Cellex-C Complex is the original formulation in the early 1990's pioneered the worldwide interest in topical application of vitamin C. Cellex-C was the first topical ascorbic acid formulation to be sucessfully commercialized.