Science-Based Nutrition™Helps Promote a Healthy Immune ResponseDietary SupplementVegan / Non- GMO / Gluten Free / Soy FreeDoctor's Best Vitamin C contains Quali-C® which is manufactured in Scotland and prized for its quality and reliability. Vitamin C is indispensable to the body for its role in the synthesis of collagen, carnitine, and certain brain chemical transmitters. Abundant clinical research confirms Vitamin C's fundamental support for the brain, eyes, heart and circulation, immune system, and all organic systems.Helps the body's antioxidant defensesEssential cofactor for important enzyme systemsHelps promote healthy immune responseEssential for joints and other connective tissues