When you're doing research, you need to start at like *the bare minimum*, which is understanding how the compound works in the body through scientific papers. Not summaries posted by other people. Not saying you did that but setting the expectations
So GHK-CU can work as an antifungal but if a pharm grade anti-fungal didn't work, then I would be a little more skeptical.
And are we doing topical or are we doing injectable?