My default response to things like this is, “it’s a scam.”
Couldn’t get past the cookie and permits walls
If they don’t mention the chemical compound, give one a set cost,(affordable) and don’t really guarantee a response it is a scam. It is meant to play on and profit from ones sincere Desperate desire to cure Alzheimer’s.
Let them prove they got the cures. If not, throw them in the garbage.