So, if you look at the amino acid schedule of collagen you will see that there is hardly any tryptophan.
A search online revealed there is a firm adding tryptophan to it along with vitamin C. Can adding tryptophan to it make it something else? For what reason would you do this? There is a reason it has no tryptophan and I feel like adding that would make it no longer the same product. Am I incorrect? Seriously, would taking gelatin with added tryptophan result in it being used in another way by your body?