L-Arginine Zinc And Folic Acid Sachet is a dietary supplement that contains a combination of three important nutrients - L-arginine, Zinc, and Folic Acid. L-arginine is an amino acid that plays a key role in the production of nitric oxide, a molecule that helps relax blood vessels and improve blood flow. Zinc is an essential mineral that is important for many bodily functions, including immune system function, wound healing, and DNA synthesis. Folic acid, also known as vitamin B9, is essential for proper cell growth and development and helps prevent certain birth defects.