Athletes other than bodybuilders or those concerned primarily with strength may also benefit from boldenone undecylenate. This is due to the fact that the compound stimulates the release of erythropoietin, commonly referred to as EPO, in the kidneys. Erythropoeitin signals the body to increase the production of erythrocytes (red blood cells). Erythrocytes are the carrier of oxygen in the body and therefore if their concentration is increased in the body, a higher maximal oxygen capacity is produced and performance can be improved due to a delay in the on set of fatigue, including the build up of lactic acid. While the results would not be overly dramatic, a user should definitely notice an improvement all things being equal.