Possibly, Yes. There is a study on rats that experimented with the long-term oral administration of l-arginine. Conclusion was L-Arginine does improve the erectile response in aging rats, and significant increase in erections health. (Source)
Possibly, Yes. There is a study on rats that experimented with the long-term oral administration of l-arginine. Conclusion was L-Arginine does improve the erectile response in aging rats, and significant increase in erections health. (Source)