You already know vitamin C is a hardworking antioxidant. Our Super Bio Vitamin C is designed to do much more than help support your immune system health. It's designed to support collagen production, healthy blood vessel integrity, bone and cartilage development and nerve impulse transmission. That's a lot of radiant health and wellness in one daily serving! But with so many C vitamins out there, how do you really know which one is best? Solaray's cutting edge, timed-release formula works in two steps. Designed to start working immediately, half the vitamin C is released quickly, while the other half is released gradually for powerful, sustained support. Bioflavonoids may enhance bioavailability, and a buffer of calcium carbonate and magnesium oxide is designed to minimize acidity so it's gentler on your stomach. And like all Solaray supplements, our Super Bio Vitamin C is lab tested for purity and potency. Try it today and Live Brighter!