A product can pass USP sterility (no viable organisms) and still carry a clinically significant endotoxin load from organisms that were present earlier in the manufacturing process and killed during sterilization
The benzyl alcohol acts as a bacteriostatic agent, meaning it inhibits (but does not kill) bacterial growth in the solution
A big part of this has to do with routines, pacing, and conserving energy
But the symptoms are the same for both
The regulatory status of injectable B12 is a source of frustration for many, particularly those advocating for greater patient autonomy
Like every BioHack London peptide, both BPC-157 and TB-500 batches ship with independently-tested Certificates of Analysis (HPLC purity verification + mass spectrometry molecular weight confirmation), accessible before purchase via the product page and via QR code on the vial