Where to get bacteriostatic water Bacteriostatic water for injection is available through several channels: Pharmacies Available behind the counter at most pharmacies (prescription not required in most US states, though policies vary by location) Online retailers Dedicated suppliers offer pharmaceutical-grade bacteriostatic water with certificates of analysis (COAs) confirming benzyl alcohol concentration, sterility, and pyrogenicity testing Compounding pharmacies Often stock bacteriostatic water as a standard inventory item The key quality markers to verify in any source: USP-grade designation, 0.9% benzyl alcohol concentration, sterility and pyrogenicity testing, and an expiration date at least 12 months out from purchase
Acc Chem Res
Quality Control in Research Compounds: COA and HPLC Testing for Metabolic Studies. Analytical Chemistry Reviews , 54(1), 78-95
The solution should be clear and colorless once fully dissolved
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Your clinician should tailor this to your situation and, importantly, to the underlying cause of deficiency (dietary vs non-dietary)