You should only be using Hospira branded bacteriostatic water to reconstitute your peptides. Not that Amazon stuff. None of that Chinese bac water stuff. Just Hospira. The difference between Hospira and other You should only be using Hospira branded bacteriostatic water to reconstitute your peptides. Not that Amazon stuff. None of that Chinese bac water stuff. Just Hospira. The difference between Hospira and other Rx Item Water Bacteriostatic Vial 25X30 Ml By Hospira Worldwide PeptidePartners @Krysia830073 Here's a good article on spotting fake Hospira bac.