I have used the pro c every morning for a month. I CAN SEE my skin is brighter , and younger looking. I don't even have to look hard, to see the changes. My 15 yr old teen loves the soap. Teens are hard to please. I love the firming serum so much, that i have purchase many additional products to try. I have used some of her products for about ten years. I m so happy with this kit and many other of her products, that i just buy hers now . I truly SEE a big change in my skin, I'm 53. Thank you so much DR. Denese.