I saw a lot about arginine on this site but unfortunately I get really bad canker sores if I (sounds weird but not that uncommon if you google it).
How important is arginine & is there anything I can take instead?
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i used it and it worked for a few weeks but i developed a resistance to it
i had luck with some stuff called maca powder , improved libido and erection strength in my case anyway
en.wikipedia.org/wiki/Maca_%28plant%29