Do you know a suitable hydrolysed protein for an elemental diet?

[Chlorinated]

Hi

I am building my own elemental formula and have all the parts except for the protein. Most of the hydrolysed protein products have ingredients which may aggravate conditions like leaky gut so ideally I want something without negative ingredients. or preferably any ingredients at all.
Many proteins are partially hydrolysed which I believe is also not good.
The intestine is only meant to absorb amino acids, di and tri peptides so does anybody know of a product that contains only these or something that will be digested by a very bad leaky gut easily?

Btw, do medical elemental formulaes contain amino acids only? Correct me if im wrong but sometimes the body also requires di and tri peptides, so where does it get these from. Can I heal a stomach on amino acids powder without the di and tripeptides?

Thanks