This two-stage timed release Vitamin C formula is meant to provide antioxidant activity and help support collagen synthesis, capillary & blood vessel integrity, cartilage & bone development, immune function, and nerve impulse transmission. In-vitro dissolution tests, designed to mirror the digestive process, suggest that this formula releases half of its Vitamin C content quickly and the other half slowly over 12 hours, potentially extending its availability to the body. Results may vary.