From the article:

You can order GLP-1 peptides from China for cheap. Once you have the peptide, all you have to do is put it in the right amount of bacteriostatic water. In theory this is no harder than any other mix-powder-with-water task. But this time if you do anything wrong, or are insufficiently clean, you can give yourself a horrible infection, or inactivate the drug, or accidentally take 100x too much of the drug and end up with negative weight and float up into the sky and be lost forever. ACX cannot in good conscience recommend this cheap, common, and awesome solution.