C-750 Plus™ provides 750 mg of buffered vitamin C along with 3 mg of BioPerine® to enhance bioavailability.* BioPerine® is a proprietary extract from black pepper that has been shown in clinical studies to increase the bioavailability of vitamin C by up to 40%.* Vitamin C provides antioxidant protection, immune support and supports the production of healthy connective tissue and collagen.*