L-Arginine
![L-Arginine](http://thealfawolf.com/cdn/shop/articles/dreamstime_m_49775823.jpg?v=1687519985)
an amino acid naturally found in red meat, poultry fish, and dairy. It is necessary for making proteins and is commonly used for circulation. L-arginine is converted in the body into a chemical called nitric oxide. Nitric oxide causes blood vessels to open wider for improved blood flow throughout the body giving most men a firmer erection.