Vitamin C is an important antioxidant nutrient that helps neutralize free radicals and support a healthy immune system. 21st Century's Prolonged Release Vitamin C-1000 provides long-term vitamin supplementation by slowly releasing nutrients into the body over an extended period of time. No sugar, salt, yeast, preservatives, artificial flavors or colors. Unconditionally guaranteed for purity, freshness and label potency. Product Features: Helps neutralize free radicals and supports a healthy immune system The convenience of long-term vitamin C supplementation Gluten free No added sugar, salt, yeast, preservatives, artificial flavors or colors