Ghoul
Member
It's a tough one..cause some peps like NAD+ are better at higher ph..and don't want to use something like 5.7..then you have some that do better in lower ph...like Glutathione...The last thing you want is to use the wrong ph..and make your pep useless...
Lab grade PBS sterile solutions are easy to get at multiple ph points (just need to know what ph your peptide is most stable at) but getting one that writes "for injection" is rare...
While I'm fairly confident if it's from a genuine lab supply it's probably safe for human use (it's used with live tissue experiments after all), I'm much more comfortable with human grade WFI based PBS,

