Cellex-C Patented Formulations contain L-ascorbic acid, L-Tyrosine and zinc sulphate. L-ascorbic acid is the only form of vitamin C that the body can recognize and utilize to promote collagen synthesis. The patented Cellex-C formulation acts as a powerful anti-oxidant, protecting vulnerable skin from free-radical attack and cellular damage. Cellex-C products are based on scientific research and protected by U. S. and International patents. Competitive products cannot legally duplicate Cellex-C and its precise chemistry. Cellex-C Core Formulations are designed to help your skin look, act and feel like younger skin. With regular use, Cellex-C will improve the overall texture, color and look of your skin and help reduce the visible signs of aging.