L-Arginine C is a dietary supplement containing L-Arginine, an amino acid that is involved in numerous biological processes in the body. It is a precursor to nitric oxide, a molecule that helps to dilate blood vessels and improve blood flow. It also contains vitamin C, which acts as an antioxidant and supports immune function. This combination of L-Arginine and vitamin C can help to support cardiovascular health, boost exercise performance, and promote overall health and well-being. L-Arginine C is available in capsule or powder form and is suitable for athletes, fitness enthusiasts, and anyone looking to support their overall health.