[tanysquirrel]

http://www.vrp.com/amino-acids/amino-acids/growth-hormone-amino-acids-as-gh-secretagogues-a-review-of-the-literature

According to this site, l-arginine and l-orthinine increase hgh significanty in a synergistic manner.

Also to note, apparently, l-arginine works better at night, not post-excersise.