L-arginine is classified as a semi-essential amino acid, and it is produced by your body, which is why it is not an essential amino acid. While L-arginine is produced by your body, you may consume this amino acid through dietary sources such as protein as well as through concentrated supplements. One of the primary responsibilities of this amino acid is to produce nitric oxide, which is an essential gas used by your body to dilate blood vessels to increase overall blood circulation. L-arginine is also responsible for overseeing the manufacturing of proteins. Because of this purpose, L-arginine has been traditionally used to expedite wound healing.
As discussed in the body builder scenario on the first page, many people purport L-arginine can build muscle mass. However, L-arginine is not the miracle muscle builder some snake-oil salesmen make it out to be, but what chemical could possibly live up to all those claims? The amino acid may at least help you maintain muscle mass. Maybe.
Lastly, it may improve sexual function [source: Drugs.com]. There's some evidence that L-arginine can help with the function of body parts that rely on dilated blood vessels. That includes the sexual organs. Some think L-arginine can boost endurance.
Evidence of Wound Healing:
As stated above, L-arginine is typically used to shorten wound healing time. Did you know that your skin heals itself through three basic steps: inflammation of the wound, reforming tissue around the wound and finally remodeling the tissue. Protein is a vital compound for all three of these steps, and since L-arginine is responsible for the production of this compound, it has been studied for this reason. Preliminary studies have found that supplementation of L-arginine actually enhanced the production of collagen and supported wound strength.
Evidence of Collagen Development:
According to a study published by The Journal of Trauma, rats who were given L-arginine supplements actually experienced a significant increase in collagen synthesis, or production. As you age, collagen in your skin begins to deteriorate and your body is unable to produce the same amount of collage as it could when you were younger. By naturally enhancing the production of collagen, your skin can retain its elasticity and vitality.
Provides Support For Muscle Gain While Limiting The Storage Of Fat. Also supports your skin collagen for a more elastic skin.