CELLEX C Cellex C products may be the first Cosmaceutical to have a profound effect on the way the skin visibly ages. The purpose of Cellex C products is to help produce optimal conditions to assist the skin in appearing smoother, and much less lined. Cellex C contains L Ascorbic acid as its primary ingredient. This particular form of Vitamin C was chosen because it is based on the long established Medical knowledge that L Ascorbic Acid is the only form of Vitamin C that the body can recognize and utilize to stimulate collagen synthesis.