Vitamin C (ascorbic acid), is an important antioxidant that has been applied broadly in the field of orthopaedics. Current research on vitamin C examines the molecule's role in bone and tendon physiology, as well as joint replacement and Postoperative pain. Most laboratory and human studies associate the use of vitamin C with improved bone health and tendon healing. Recent literature moderately supports the use of vitamin C to improve functional outcomes, decreased postoperative pain, and prevent complex regional pain syndrome following orthopaedic procedures. The perioperative use of vitamin C in patients undergoing joint replacement surgery and anterior cruciate ligament reconstruction is still under investigation. Overall, there is need for high-quality human trials to confirm whether vitamin C can potentiate the outcomes of orthopaedic procedures and to determine optimal dosage and means of administration to maximize its proposed benefits. The purpose of this review was to summarize the application of vitamin C in orthopaedic practices and to identify potential areas for future study. K E Y W O R D S bone, orthopedics, pain management, tendons, vitamin C 1 | INTRODUCTION Vitamin C (ascorbic acid), is an important antioxidant and deficiency of this mineral is most often associated with scurvy. 1 Vitamin C is vital to the production of collagen in both bone and connective tissue and it has been associated with improved collagen synthesis and subsequent tendon healing. 2-4 It also neutralizes free radicals, which helps to decrease oxidative stress and inflammation. 5 Vitamin C has also been used as a supplement in orthopaedic patients. 6-8 Vitamin C has been linked to improved bone mineral density as well as decreased risk of bone fracture and osteoporosis. 9-11 Furthermore, there is recent evidence to suggest that vitamin C may have a protective role in osteoarthritis. 12 From a postoperative recovery perspective, vitamin C has been found to reduce the incidence of complex regional pain syndrome (CRPS) and improve functional outcomes. 5,13 However, some of these conclusions on the therapeutic effect of vitamin C continue to be debated. 14 The purpose of this review was to summarize the role of vitamin C in orthopaedic practices and to identify potential areas for future study. 1.1 | Perioperative pain management Postoperative pain exists as a common challenge to orthopaedic surgeons, as it is linked to increased risk of postoperative complications, longer hospital stays, and significant delays in the return to regular function. 15 Opioids, such as morphine, may be prescribed to limit postoperative pain in orthopedic patients; however, there are a multitude of side effects associated with their use