Doctor’s Best Vitamin C with Q®-C helps support a healthy immune system and helps support the body’s antioxidant potential. This formula uses Vitamin C with Q®-C, a brand of ascorbic acid manufactured in Scotland that is prized for its quality and reliability. Essential cofactor for important enzyme systems. Essential for joints and other connective tissues. Doctor’s Best Vitamin C contains Q®- 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 immune system, brain, eyes, circulation of blood, and all organ systems. Vitamin C is also an electron donor, supporting numerous enzymes and enhancing the body’s total antioxidant potential. It is recommended to take 1 capsule daily preferably without food, or as recommended by a nutritionally-informed physician Consult your healthcare provider before use if you are taking any prescription medications or if you have a medical condition. Store in a cool dry place.