Holistic Way High Potency 1000mg Timed-Release Vitamin C is an antioxidant that has added natural Citrus Bioflavonoids; plant components known to help improve circulation. It comes in a timed-release form which gradually supplies Vitamin C throughout the day. Vitamin C supports healthy immune system functioning and stimulates collagen growth. This timed release antioxidant formulation also helps maintain healthy capillaries, skin, bones, gum and teeth, and promotes wound healing. Vitamin C also acts as free radical scavenger in the body.