Solgar L-Arginine 500 mg 50 vegetable capsules. Free form (not peptide) for better absorption. L-Arginine is an amino acid of great importance for muscle metabolism, because it acts as a vehicle for the transport, storage and elimination of nitrogen. It also helps remove ammonia from the body as part of the urea cycle. L-Arginine is an important aid in the production and regeneration of tissues, being highly concentrated in the skin and connective tissue. It stands out for its stimulating role in the release of growth hormone, which favors the elimination of fat and muscle development. It has also been observed that it could stimulate immune function and in men it can promote sperm production and erection. Take one (1) vegetable capsule daily between meals, with juice or water.