Agmatine is a chemical found in bacteria, plants, and animals, including humans. It is made from the amino acid known as arginine.

Agmatine is also known as 1-(4-aminobutyl)guanidine, Agmatin, and Decarboxylated Arginine.

Agmatine is commonly used by mouth for depression, nerve pain, improving athletic performance, and many more conditions.

https://www.webmd.com/vitamins/ai/ingredientmono-1562/agmatine