l-Arginine is most well-known for its use in cardiovascular support. Its other critical functions include assisting in wound healing, helping remove excess toxic ammonia from the body, supporting immune function, and promoting the secretion of several hormones, including glucagons, insulin, and growth hormone. It plays an important role in muscle metabolism by working to transport, store and excrete nitrogen. Suggested use is 2 capsules, 1 to 3 times daily between meals. Please contact our in-house customer support if you have and questions.