I have been doing some research on arginine , a study in rome and other varies medical sources on the net says that the form of arginine must be arginine pyrogltamate, 1200mg of this + 1200mg of lysine hcl, is suposed to bring a marked increase in growth hormone levels ( peaking at 90 mins after injestion ), some reasearch also says stacking with nican or orthanine will amplify the effect.
I made the mistake of buying plain L arginine , apparently it competes with lysine for uptake so it is recommended the 2 are not taken together ,
Arginine pyroglutamate is more exspensive than just plain arginine, Iam going to order some arginine pyroglutamate from the amino guy and mix with lysine , also add some orthinine for good measure, let you know how it goes