K4 Elite
K4 Elite
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Bacteriostatic Solution (0.9% Benzyl Alcohol) is a lab liquid used for mixing, not a peptide. It is water containing a small amount of benzyl alcohol (0.9% by weight), which helps hold back germ growth. In research, it is used to dissolve and dilute freeze-dried research peptides and proteins.
Benzyl alcohol is one of the two most common germ-slowing preservatives used in peptide and protein liquids. At 0.9% it is used to hold back the growth of germs so a liquid can be handled over a period of time rather than only once [1][2]. It slows germs because it mixes easily with fats and can slip into and disrupt the outer wall (membrane) of germ cells, damaging that wall's structure and function [2]. Reviews describe it as one of the least harmful of the injectable-grade germ-slowing preservatives available [1].
Because benzyl alcohol can interact with dissolved proteins, studies have looked at how it affects the stability of proteins and peptides. One study examined how benzyl alcohol affected the clumping of a lab-made protein in freeze-dried formulas after they were re-dissolved, which helps guide how preservatives are chosen for peptide liquids [3].
This is a lab-grade mixing liquid. The referenced research is about preservative chemistry and how well it mixes with peptides, not about any medical use of this liquid. It does not show that this solution is safe or effective for use in humans or animals. This product is provided strictly for in-vitro research use only (test-tube and lab research only).
| Molecular formula | C7H8O |
|---|---|
| Molecular weight | 108.14 g/mol |
| PubChem | CID 244 ↗ |
Store the bacteriostatic solution at room temperature, kept sealed and protected from light and contamination. Use it as a diluent to reconstitute lyophilized research peptides by adding the solvent slowly against the vial wall; once a peptide is reconstituted, store the resulting solution refrigerated at 2-8°C and use within a limited window. Keep the container tightly closed between uses.