Progressive Vitamin C Complex - Bonus Size - This unique formulation contains a synergistic combination of isolated and botanical forms of Vitamin C, as well as an array of complementary nutrients designed to enhance Vitamin C uptake, absorption and utilization while maximizing antioxidant activity. The use of multiple Vitamin C sources (especially those derived from whole plant extracts) greatly increases the overall efficacy and harmony of this product, as each component contributes its own unique nutritional properties. This comprehensive formula has been designed to be consumed on an ongoing, daily basis and can be taken by every adult member of your family.