If you put a peptide in anything else, (like ethanol) it will denature and destroy the peptide. Peptides in general are water soluble, theyre just amino acid chains. Usually peptides are injected after reconstituting with bacteriostatic or sterile water, water doesn't denature the peptide unless you expose it to heat or let it sit too long. That's why he says make sure to mix a new bottle every 4 weeks. As for it not being extensively tested, the trial was close to a year long. The man is a very prestigious stem cell scientist / doctor - i'm sure he has more important things to work on besides hairloss, but he still came through with a solution. Personally I'm on my second month and I can tell there is a decrease in shedding for sure. no regrowth yet.