Mixing Melanotan peptides, growth factors CJC1295,GHRPs,HGH,MGF,and fragments use bacteriostatic water. For IGF-1 use a .6% acetic acid solution. you can make the solution using 7 parts distilled water and 1 partx vinegar from the grocery store. You must filter this through a sterile syringe filter, so is a lot easier to just buy all you need, most peptide labs do sell the diluting solutions.