100 capsules

New research proposes that the upper daily limit of Vitamin D be 10,000 IU. Monitoring serum calcium and 25(OH)D3 levels while giving higher doses is essential.

120 capsules

60 capsules

Ultra Potent-C® 500 is a proprietary, patented vitamin C formula that features a unique blend of ingredients designed to enhance utilization and prevent potential stomach upset. Ultra Potent-C 500 supports healthy immune function by helping promote natural killer cell and white blood cell activity. Preliminary scientific research suggests that vitamin C in the form of Ultra Potent-C® may result in improved uptake of the vitamin by white blood cells when compared to regular ascorbic acid.*

• Provides valuable antioxidant protection.*
• Supports the production of collagen and connective tissue.*
• Supports healthy immune function by helping to promote natural killer cell and white blood cell activity as compared to simple ascorbic acid.*
• Features a unique metabolite support system designed to enhance utilization.
• Buffered to help prevent potential stomach upset.