most believe peptide form is better than l glutamine , but it seems on animal's board , they consider useless ! well to each his own , and btw , kilo sports has peptide glutamine for 40 bucks .
The idea behind the peptides is that at the molecular level it is smaller and more of it is absorbed. Here is a link from the Protein Factory that gives a detailed breakdown of all of the glutamnie family.
Warning!!! Protein Factory has good deals on protein and carbo mix and flax. But their Glutamine is one of the most horrible things Ive ever tasted. And most glutamine is practically tastless.