This study was only done in vitro (not in a living subject).

http://link.springer.com/article/10....0503520#page-1

This study suggests only a specific arginine type works.
http://www.ncbi.nlm.nih.gov/pubmed/7739750

I am unsure about the arginate version therefore, because I don't know if is identical to the arginine amide type.

This last study was done on CNS...for Alzheimer research, and is also an in vitro study.

I think at this point, proof is still waiting on it.

Here is a LEF article.... I think it also is citing in vitro studies.
There is a big leap to in vivo effects so at this time this product is still not supported in a living model.
http://www.lef.org/magazine/mag2004/..._acetyl_01.htm

Can't hurt to try it... unless you have a history of shingles.
People with Herpes Zoster, have to be careful with arginine.
It can activate the virus with painful consequences. If you suspect arginine for Zoster issues, you need to take l-lysine with it. Keeping that ratio helps to keep the virus down.

Other than that, it is only the cost that is a factor. Keep in mind that we do not have a dosing guide either for this.