Bacteriostatic water is the most commonly used solvent, as its 0.9% benzyl alcohol content helps prevent bacterial growth and extends shelf life. Other suitable options include:
- Sterile water – ideal when the peptide will be used immediately
- 0.6% acetic acid – useful for peptides that do not dissolve well in plain water
- Arginine solution – recommended for complex or hydrophobic peptides
Always refer to the supplier’s guidelines to ensure you are using the correct solvent for your specific peptide.