Regulations vary by country and state
The benzyl alcohol in bacteriostatic water inhibits bacterial growth, keeping the solution safe for multi-dose use over approximately 28 days
They spent $1,600 got results and have nothing permanent to show for it

Related Topics KLOW Dosing Calculator The 4-peptide variant with KPV for reactive or post-procedure skin Injury Recovery Peptide Protocol Five-compound structural repair framework including NAD+ metabolic support BPC-157 + TB-500 Wolverine Stack Simpler injury recovery stack centered on the two core repair peptides BPC-157 Guide Standalone dosing, pharmacokinetics, oral vs injectable TB-500 / TB-4 Guide Fragment vs full-length, CoA verification, threshold-saturation mechanism GHK-Cu Guide Copper peptide mechanism for skin and matrix quality NAD+ Guide Cellular energy support for intensive repair cycles Peptide Reconstitution Guide General bacteriostatic water and syringe handling Where to Inject GLOW Peptide Near-injury vs systemic injection routing References GHK-Cu tissue-organization signaling and copper-peptide complex TGF-/Smad matrix organization, lysyl oxidase cross-linking, SOD/catalase antioxidant expression, copper coordination chemistry, 4,000+ gene modulation: PubMed 29986520

Although #2 plastic bottles are designed to minimize this problem, they still are not designed for repeated use