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Peptide Reconstitution Disclaimer / Important Mixing Instructions For best results and to help support the stability and clarity of research materials, we strongly recommend using only Pfizer bacteriostatic water for reconstitution. Cheap bacteriostatic water sold on Amazon or other third-party sites is often not pharmaceutical-grade. Many of these products are homemade or from unverified sources, which can contain impurities or incorrect formulations. This may cause your peptide solution to gel, degrade faster, or introduce unwanted contaminants. Pfizer bacteriostatic water is readily available at reputable Canadian pharmacies such as London Drugs and Shoppers Drug Mart, and is also available directly through our website (see below ↓). Always follow proper sterile technique when reconstituting. Using the correct bacteriostatic water helps maintain the integrity, potency, and clarity of your peptide mixture. We cannot be responsible for issues arising from the use of non-recommended diluents.