Every day, Vitamin C 10% works on skin's surface to instantly brighten. See remarkably even-toned and retexturized skin with continued use. Every night, Vitamin A (Retinol) penetrates deeply into skin's surface. Over time, skin appears revitalized, lines and wrinkles 're-filled,' youthful tone recaptured. *Proven Results Based on a 12-week clinical study using Vitamin C 10% in AM and Vitamin A (Retinol) in PM, vs. nighttime use of a leading prescription ingredient. First AM use radiance instantly boosted in 1 week smoothness and texture improved in 4 weeks fine facial wrinkles visibly reduced in 12 weeks skin tone is more even & deep-set wrinkles and forehead lines dramatically reduced.