2000 mg of Vitamin C per serving is a supplemental dose of Vitamin C antioxidant supplement, which is important for the body’s production of collagen to help support healthy skin. Vitamin C has powerful antioxidant properties that help prevent free radical damage. It supports the immune system and supports healthy brain function and cognition Antioxidant effect: Vitamin C is a powerful antioxidant that helps neutralize free radicals and reduce cell damage. Immune system support: Vitamin C helps strengthen the immune system and helps the body fight infection and disease. Collagen Production: Vitamin C is required for the synthesis of collagen, a protein essential for maintaining healthy skin, bones, soft tissues and blood vessels.